The melting point of benzene is 5.5 degree C. Predict the signs of Delta H, Delta S, and Delta G for the melting of benzene at: a. 0.0 °C ΔH = ΔS = ΔG = b. 15.0 °C ΔH = ΔS = ΔG =

Answers

Answer 1

a. Melting benzene at 0°C requires energy input and results in an increase in disorder. b. The signs of ΔH, ΔS, and ΔG for melting benzene at 15°C depend on temperature and cannot be accurately predicted.

a. At 0.0°C, the signs of Delta H, Delta S, and Delta G for the melting of benzene are all positive. ΔH represents the enthalpy change, ΔS represents the entropy change, and ΔG represents the Gibbs free energy change. A positive value for ΔH indicates that the process is endothermic, meaning that energy is absorbed from the surroundings. A positive value for ΔS indicates an increase in disorder or randomness of the system, while a positive value for ΔG indicates that the process is non-spontaneous and requires energy input to occur.

b. At 15.0°C, the signs of Delta H, Delta S, and Delta G for the melting of benzene are all dependent on the temperature and cannot be accurately predicted without additional information. The signs of these values can change as a function of temperature. However, assuming that the temperature increase causes a higher melting point, it is likely that the values of ΔH, ΔS, and ΔG will all become more positive as the process becomes less favourable. This means that more energy input is required, and the system becomes more disordered as the temperature increases.

Learn more about  melting of benzene here:

https://brainly.com/question/30114259

#SPJ11


Related Questions

what is the molar mass of citric acid (c6h8o7) and baking soda (nahco3)?


Answers

The molar mass of citric acid (c6h8o7) is 192.124g/mol

The molar mass of baking soda (nahco3) is 84.007g/mol

The molar mass of a chemical compound is defined as the mass of a sample of that compound divided by the amount of substance in that sample and is measured in moles. Molar mass is a mass property, not a molecular property of a substance.

Molar mass is the mass of 1 mole of the sample. To find the molar mass, add up the atomic masses (atomic weights) of all the atoms in the molecule. Use the masses listed in the periodic table or atomic weight table to determine the atomic mass of each element.

Learn more about molar mass here:https://brainly.com/question/15476873

#SPJ1

The molar mass of citric acid (C6H8O7) : 192.12 g/mol

The molar mass of citric acid (C6H8O7) : 84.007 g/mol

Baking soda is a monosodium salt of carbonic acid with alkalizing and electrolyte substitution properties. When dissociated, baking soda forms sodium and bicarbonate ions. Ion formation increases plasma bicarbonate and buffers excess hydrogen ion concentration, resulting in an increase in blood pH.

Citric acid is a naturally occurring weak acid in all citrus fruits. If you've ever sunk your teeth in a lemon, you've tasted citric acid. Manufacturers add artificial versions of it to processed foods. Drugs containing citric acid treat health problems such as kidney stones.

Learn more about molar mass here: https://brainly.com/question/837939

#SPJ4

Given that the initial rate constant is 0.0110s−1 at an initial temperature of 21 ∘C , what would the rate constant be at a temperature of 150. ∘C for the same reaction described in Part A?

Part A said: The activation energy of a certain reaction is 45.5 kJ/mol . At 21 ∘C , the rate constant is 0.0110s−1 . At what temperature in degrees Celsius would this reaction go twice as fast?
T2= 32 degrees

Answers

The rate of reaction at 150 degrees is 1.878.

What is the activation energy?

We have the formula as;

ln(k2/k1) = Ea/R (1/T1 - 1/T2)

ln(2( 0.0110)/0.0110) = 45.5  * 10^3/8.314(1/294 - 1/T2)

0.693 = 5473(1/294 - 1/T2)

0.693/ 5473 = (1/294 - 1/T2)

1.27 * 10^-4 = 1/294

1/T2 = 1/294  - 1.27 * 10^-4

1/T2 = 340 * 10^-4 - 1.27 * 10^-4

T2 = 30 degrees

Again;

ln(k2/0.0110) =  45.5  * 10^3/8.314(1/303 - 1/423)

ln(k2/0.0110) = 5473(3.3 * 10^3 - 2.36  * 10^3)

ln(k2/0.0110) = 5.14

k2/0.0110 = e^5.14

k2 = 0.0110 * e^5.14

k2 = 1.878

The temperature that the reaction will go twice as fast is 30 degrees while the rate construction at 150 degrees is 1.878.

Learn more about Arrhenius equation:https://brainly.com/question/15051189

#SPJ1

Which diagram is the correct electron dot diagram for magnesium?



A.
A symbol of magnesium M g has four dots representing four free electrons.

B.
A symbol of magnesium M g has three dots representing three free electrons.

C.
A symbol of magnesium M g has one dot representing one free electron.

D.
A symbol of magnesium M g has two dots representing two free electrons.

Answers

A symbol of magnesium, Mg, with two dots representing two free electrons. The correct option is D.

Electron dot diagram

Magnesium is represented by Mg.

Magnesium has an atomic number of 12. Thus the electron configuration will be 2,8,2.

This means that there are two valence electrons in every Mg atom.

Therefore, the electron do diagram would be the symbol of the element with two dots representing the two valence electrons.

More on electron dot diagrams can be found here: https://brainly.com/question/2115636

#SPJ1

Answer:

Two dotted M

Explanation:

Which law relates temperature, pressure, volume, and the number of moles of a gas under perfect conditions?
Boyle’s law
Charles’s law
ideal gas law
combined gas law

Answers

The law that relates temperature, pressure, volume, and the number of moles of a gas under perfect conditions is ideal gas law (option C).

What is ideal gas law?

Ideal gas law in physics refers to the equation of state of an ideal gas. The law equation is as follows:

PV = nRT

Where;

P = pressureV = volumen = number of molesT = temperatureR = gas law constant

Therefore, it can be said that the law that relates temperature, pressure, volume, and the number of moles of a gas under perfect conditions is ideal gas law.

Learn more about ideal gas law at: https://brainly.com/question/13821925

#SPJ1

Answer:

C. Ideal Gas Law

Explanation:

edge ;)

A 4.40g piece of solid CO2 (dry ice) is allowed to sublime in a balloon. The final volume of the balloon is 1.00 L at 300 K. What is the pressure of the gas

Answers

Answer:

2.46 atm

Explanation:

We are going to use ideal gas law   PV = n RT

find n    mole weight of CO2 = 12.011 + 2 * 15.999 = ~ 44 gm/mole

SO    4.4 gm / 44 gm/mole = .1 mole     (this is 'n' )

R = gas constant = .082057366  L-atm/k-mol

T  must be in Kelvin = 300

PV = nRT

P * 1  = .1 * .082057366 * 300

P = 2.46 atm

Consider the reaction: icl(g) cl₂(g) → icl₃(s). the ∆g(f)° of icl(g) is -5.5 kj/mol and the ∆g(f)° of icl₃(s) is -22.59 kj/mol what is the ∆g° of the reaction, in kj/mol?

Answers

The ΔG° for the reaction in kJ/mol is -17.09.

Calculation,

The reaction is given below.

[tex]ICl(g)+Cl_{2} (g)[/tex]  → [tex]ICl_{3} (s)[/tex]

The ΔG° for [tex]ICl(g)[/tex] = -5.5  kJ/mol

The ΔG° for [tex]ICl_{3} (s)[/tex]  = -22.59  kJ/mol

The ΔG° for  [tex]Cl_{2} (g)[/tex]  = 0  kJ/mol ( change in gibb's free energy of standard state )

ΔG° for the reaction =  ΔG° (product) -  ΔG° (reactant)

ΔG°  for the reaction = -22.59  kJ/mol - ( -5.5  kJ/mol + 0  kJ/mol )

 ΔG°  for the reaction = -17.09  kJ/mol

The value of change standard gibb's free energy for the standard state ( most stable form of elements) is zero.

learn about gibb's free energy

https://brainly.com/question/20358734

#SPJ4

(ii) Calculate the maximum mass of ethanol that could be obtained
g from 30.0 g of glucose.

Answers

Taking into account the reaction stoichiometry, 15.33 grams ethanol could be obtained from 30 grams of glucose.

Reaction stoichiometry

In first place, the balanced reaction is:

C₆H₁₂O₆  → 2 C₂H₅OH + 2 CO₂

By reaction stoichiometry (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of moles of each compound participate in the reaction:

C₆H₁₂O₆: 1 mole  C₂H₅OH: 2 molesCO₂: 2 moles

The molar mass of the compounds is:

C₆H₁₂O₆: 180 g/moleC₂H₅OH: 46 g/moleCO₂: 44 g/mole

Then, by reaction stoichiometry, the following mass quantities of each compound participate in the reaction:

C₆H₁₂O₆: 1 mole ×180 g/mole= 180 gramsC₂H₅OH: 2 moles ×46 g/mole= 92 gramsCO₂: 2 moles ×44 g/mole= 88 grams

Mass of C₂H₅OH formed

The following rule of three can be applied: if by reaction stoichiometry 180 grams of glucose form 92 grams of ethanol, 30 grams of glucose form how much mass of ethanol?

[tex]mass of ethanol=\frac{30 grams of glucosex 92 grams of ethanol}{180 grams of glucose}[/tex]

mass of ethanol= 15.33 grams

Then, 15.33 grams ethanol could be obtained from 30 grams of glucose.

Learn more about the reaction stoichiometry:

brainly.com/question/24741074

brainly.com/question/24653699

#SPJ1

A sample of an unknown substance has a mass of 0. 465 kg. If 3,000. 0 j of heat is required to heat the substance from 50. 0°c to 100. 0°c, what is the specific heat of the substance? use q equals m c subscript p delta t.

Answers

Answer:

.129 J / g-C

Explanation:

specific heat =  J / g-°C

                     = 3000 J / ( 465 g  * 50C ) =.129 J /g-C

Which statement is true about word equations with regards to chemical reactions?

Answers

The total mass of the reactants equals the total mass of the products

The heat of combustion for the combustion of propane, c3h8 5o2 3co2 4h2o , is equal to -2,200 kj. this is an example of a(n) _________ reaction.

Answers

Answer:

This is an example of an exothermic reaction.

Explanation:

When the heat of combustion is negative, the reaction is exothermic. This means the reaction releases heat as a product.

1.For the first ten reactions, write a balanced reaction for each tube in which a reaction occurred. If there was no reaction, write NR

Answers

The equations of reaction occurring in the tubes are as follows:

2 MnO₄⁻ + 6 Br⁻ + 8 H⁺ → 2 MnO₂ + 3 Br₂ + 4 H₂O2 MnO₄⁻ + 6 I⁻ + 8 H⁺ → 2 MnO₂ + 3 I₂ + 4 H₂ONo reaction2 Fe³⁺ + 2 I⁻ → 2 Fe²⁺ + I₂

What are the reactions occurring in the tubes?

The reactions occurring in the tubes are redox reactions.

Based on the table the equations of reaction are as follows:

2 MnO₄⁻ + 6 Br⁻ + 8 H⁺ → 2 MnO₂ + 3 Br₂ + 4 H₂O2 MnO₄⁻ + 6 I⁻ + 8 H⁺ → 2 MnO₂ + 3 I₂ + 4 H₂ONo reaction2 Fe³⁺ + 2 I⁻ → 2 Fe²⁺ + I₂

In conclusion, redox reaction are reactions in which electrons are transferred.

Learn more about redox reactions at: https://brainly.com/question/26750732

#SPJ1

If you remove two protons and two neutrons from a gold atom (au), what new element is formed (if any)?

Answers

Answer: Iridium

Explanation:

The atomic number of Iridium is 77.

The element we obtain if we remove two protons and two neutrons from the gold is iridium. The atomic number of gold is 79 and that of iridium is 77.

What is iridium?

Iridium is the 77th element in the periodic table. It is a transition metal like gold, silver, platinum etc. Iridium is a d-block metal and have its valence electrons in d-orbital.

Gold is 79th element and it is also a transition metal. Gold is a precious metal used in making ornaments and its having high cost.

The atomic number of gold is 79 and it have 79 electrons and 79 protons. The atomic number of an element is the number of its protons and the mass number of the element is the sum of number of electrons and number of protons.

If we remove two protons from the 79 protons of gold the proton number becomes 77 and thus the atomic number. The elements with the atomic number 77 is iridium.

To find more about iridium, refer the link below:

https://brainly.com/question/20713777

#SPJ2

An evil villain wants to broadcast a message to everyone on Earth. They are using satellites for the communication process. For them, money is not an option, only their ultimate goal of world domination. If they are able to place their satellites wherever they want, how many satellites do they need to broadcast their evil message to everyone on Earth?

Answers

Uhhhhhhh maybe the answer is 3

3H2 + blank, reaction arrow, 2NH3
How to complete this equation so that it is a Synthesis reaction

Answers

The reaction is completed by the equation below: [tex]3H_2 + N_2 --- > 2NH_3[/tex]

What are synthesis reactions?

They are chemical reactions in which two or more molecules react to produce a single product.

In this case, the synthesis reaction is that of ammonia. Molecules of hydrogen gas and nitrogen gas combine to produce ammonia.

The equation of the reaction is as follows: [tex]3H_2 + N_2 --- > 2NH_3[/tex]

More on synthesis reactions can be found here: https://brainly.com/question/24936069

#SPJ1

The correct placement of the coefficient in a chemical equation is...
Select one:
a. within the formula of a reactant or product.
O b. in front of the formula of a reactant or product.
O c. in front of the chemical equation.
O d. after the formula of a reactant or product.

Answers

Answer:

B.)  in front of the formula of a reactant or product.

Explanation:

Coefficients modify the amount of a particular molecule. As such, they are placed directly in front of the molecule's formula.

A technologist is creating a solution that contains 25.5 grams of NaOH that is dissolved in 1 L of laboratory grade water. What is the molarity of the solution that the technologist created

Answers

Answer:

0.638 M NaOH

Explanation:

To find the molarity of the solution, you need to (1) convert grams NaOH to moles NaOH (via the molar mass of NaOH) and then (2) calculate the molarity (via the molarity formula). It is important to arrange the conversions/ratios in a way that allows for the cancellation of units (the desired unit should be in the numerator).

(Step 1)

Molar Mass (NaOH): 22.990 g/mol + 15.998 g/mol + 1.008 g/mol

Molar Mass (NaOH): 39.996 g/mol

25.5 grams NaOH                 1 mole
-----------------------------  x  ----------------------------  =  0.638 moles NaOH
                                           39.996 grams

(Step 2)

Molarity = moles / volume (L)

Molarity = 0.638 moles / 1 L

Molarity = 0.638 M

The concentration of hydroxide ion in an aqueous solution at 25°c is 3. 6 × 10⁻⁴ m. What is the concentration of the hydronium ion?.

Answers

Concentration of hydronium ion is 2.8 x 10⁻¹¹ M.

Calculation:

Given,

[OH⁻] = 3.6 x 10⁻⁴ M                    (concentration of hydroxide ion)

To find,

[H₃O⁺] =?                                     (concentration of hydronium ion)

We know the relation that,

[H₃O⁺] x [OH⁻] = Kw

where,

Kw is the ionic constant of water at 25°C

Kw = 1 x 10⁻¹⁴

Substituting the known concentration of [OH-], we can find the concentration of [H3O+],

[H₃O⁺][3.6 x 10⁻⁴] = 1 x 10⁻¹⁴

[H₃O⁺] = 1 x 10⁻¹⁴/ 3.6 x 10⁻⁴

[H₃O⁺] = 2.8 x 10⁻¹¹ M

Therefore, the concentration of hydronium ion is 2.8 x 10⁻¹¹ M.

Learn more about ionic water constant numerical here:

https://brainly.com/question/9122027

#SPJ4

A weather balloon calibrated at 0.00 °c to have a volume of 12.0 l has what volume at -22.8 °c assuming pressure is held constant?

Answers

Considering the Charles's law, the volume at 22.8 °C is 10.9978 L.

Charles's law

Charles's law establishes the relationship between the temperature and the volume of a gas when the pressure is constant.

Charles's law says that for a given sum of gas at constant pressure, as the temperature increases, the volume of the gas increases, and as the temperature decreases, the volume of the gas decreases. That is, the volume is directly proportional to the temperature of the gas.

Mathematically, Charles' law is a law that says that when the amount of gas and pressure remain constant, the ratio between volume and temperature will always have the same value:

[tex]\frac{V}{T} =k[/tex]

Considering an initial state 1 and a final state 2, it is fulfilled:

[tex]\frac{V1}{T1} =\frac{V2}{T2}[/tex]

Volume at -22.8 °C

In this case, you know that:

V1= 12 LT1= 0 °C= 273 KV2= ?T2= -22.8 °C= 250.2 K

Replacing in Charles's law:

[tex]\frac{12 L}{273 K} =\frac{V2}{250.2 K}[/tex]

Solving:

V2= [tex]250.2 K x\frac{12 L}{273 K}[/tex]

V2= 10.9978 L

Finally, the volume at 22.8 °C is 10.9978 L.

Learn more about Charles's law:

https://brainly.com/question/4147359

#SPJ1

21. In infrared spectroscopy, absorption of electromagnetic radiation results in transitions between ________ energy levels.

Answers

In infrared spectroscopy, absorption of electromagnetic radiation results in transitions between Vibrational energy levels.

What does spectroscopy mean?

Definition of spectroscopy Spectrum analysis is the study and measurement of the spectrum that matter emits when it interacts with electromagnetic (EM) radiation. It is the investigation of how frequency or wavelength affects the relationship between matter and radiation.

The various forms of spectroscopy include the following:

Acoustic resonance: A type of spectroscopy that primarily uses the ultrasonic and sonic ranges of sound. It is a popular, affordable approach for classifying and valuing materials.X-ray photoelectron: This technique makes use of the diffraction patterns that X-rays produce as they travel through crystalline materials. The nature of the crystal structure can be inferred from these patterns.You can use circular dichroism, a type of light absorption spectroscopy, to determine how differently a sample absorbs left- and right-circularly polarized light.It is appropriate for exploring the electronic structure of molecules and detecting the compounds present. Ultraviolet-Visible (UV/Vis) Spectroscopy. It aids in the recognition of peptide bonds, coenzymes, side chains of amino acids, and prosthetic groups.NMR Spectroscopy: This technique uses nuclear magnetic resonance to measure the magnetic fields surrounding the nuclei. Radio waves are used to excite atomic nuclei in a material. Spectroscopy of the infrared range of the electromagnetic spectrum is known as infrared spectroscopy. Longer wavelengths and lower frequencies are found in infrared photons, and in infrared spectroscopy, the idea of absorption spectroscopy is used.Raman spectroscopy is a method of spectroscopy used to examine low-frequency system modes such as rotational, vibrational, and other modes.

Learn more about Spectroscopy here:-

https://brainly.com/question/27610069

#SPJ4

3H2 + blank, reaction arrow, 2NH3
How to complete the equation so that it is a Synthesis reaction

Answers

The complete equation representing the synthesis reaction for the formation of ammonia is: 3 H₂ + N₂ ⇒ 2 NH₃

What is a synthesis reaction?

It is a reaction in which 2 or more substances combine to form 1 product.

Let's consider the following incomplete synthesis reaction.

3 H₂ + ____ ⇒ 2 NH₃

According to Lavoisier's law, the mass and the elements must be conserved in a chemical reaction. So, since there is nitrogen to the right, the missing element to the left must be nitrogen. Molecular nitrogen is diatomic.

The complete reaction is:

3 H₂ + N₂ ⇒ 2 NH₃

The complete equation representing the synthesis reaction for the formation of ammonia is: 3 H₂ + N₂ ⇒ 2 NH₃

Learn more about synthesis reaction here: https://brainly.com/question/16560802

#SPJ1

A sample of gas has a temperature of 25 oc and a volume of 122 ml. if the volume is decreased to 50 ml, what is the new temperature?

Answers

Answer:

10.2 °C

Explanation:

If all other variables are held constant, you can find the new temperature using the Charles' Law equation. The equation looks like this:

V₁ / T₁ = V₂ / T₂

In this equation, "V₁" and "T₁" represent the initial volume and temperature. "V₂" and "T₂" represent the final volume and temperature. You can find the new temperature by plugging the given values into the equation and simplifying.

V₁ = 122 mL                     V₂ = 50 mL

T₁ = 25 °C                        T₂ = ? °C

V₁ / T₁ = V₂ / T₂                                         <----- Charles' Law equation

122 mL / 25 °C = 50 mL / T₂                    <----- Insert values

4.88 = 50 mL / T₂                                     <----- Divide 25 from 122

4.88 x T₂ = 50 mL                                    <----- Multiply both sides by T₂

T₂ = 10.2 °C                                             <----- Divide both sides by 4.88

For the calculating change in pH question, some of the volumes of acid required were very very small. The smallest volume that can be reasonably transferred with pipetteman is 2 microliters (2 x 106 liters) If the volume of acid that needs to be added is so small that there is no equipment available to measure and transfer the correct volume of acid, what could be done to successfully adjust the pH? a) Use a less concentrated acid to adjust the pH so the required volume would be larger b) Use a more concentrated acid to adjust the pH so the required volume would be larger c) Use a less concentrated acid to adjust the pH so the required volume would be smaller d) Use a more concentrated acid to adjust the pH so the required volume would be smaller

Answers

To successfully adjust the pH, as there was no equipment to measure and transfer the correct volume of acid, then A. Use a less concentrated acid to adjust the pH so the required volume would be larger.

What is an acid?

This is a substance that changes the taste in water solution and changes blue litmus paper to red, reacts with some metals to liberate hydrogen, reacts with bases to form salts, and promotes chemical reactions (acid catalysis).

Hence because there was no equipment available to measure and transfer the correct volume of acid, the best and safest and most successful thing to be done is to use a less concentrated acid to adjust the pH so the required volume would be larger.

Read more about pH level here:

https://brainly.com/question/940314

#SPJ1

How are ionic compounds formed?

Answers

Answer:

Atoms gain/lose electrons and are held together by electrostatic forces.

Please help me!
List A
(a) Gas pressure
(b) One mole of substance
(c) One mole of any gas
(d) Avogadro's number
List B
(i) 6.02 × 1023
(ii) 22.4 dm³ at STP
(iii) force per unit area
(iv) 6.02 x 1023 particles

Answers

Answer:

(a) Gas pressure ---------------------> (iii) force per unit area

(b) One mole of substance -------------------> (i) 6.02 x 10²³

(c) One mole of any gas ----------------------> (ii) 22.4 dm³ at STP

(d) Avogadro's number -----------------> (iv) 6.02 x 10²³ particles

A gas has experienced a small increase in volume but has maintained the same pressure and number of moles. According to the ideal gas law, how has the temperature of the gas changed?

It has increased two times.
It has increased slightly.
It has decreased slightly.
It has stayed the same

Answers

According to the ideal gas law, if the volume experienced a small increase, the temperature increases slightly as well. (It has increased slightly.)

What is the ideal gas equation?

It is an equation that relates the pressure (P), volume (V), number of moles (n) and temperature (T) of an ideal gas.

Let's consider the ideal gas law.

P × V = n × R × TA

T = P × V / n × R

According to the expression above, there is a direct relationship between volume and temperature. Thus, if the volume experienced a small increase, the temperature increases slightly as well.

Learn more about the ideal gas law here: https://brainly.com/question/25290815

#SPJ1

If the prefix hydro were used to name a ternary acid, what problem would this create when naming chloric acid

Answers

Hydrochloric acid is a different kind of acid than chloric acid.

Ternary Acids (Oxy-acids) Ternary acids are also referred to as “Oxy-acids. Include hydrogen and oxygen and yet another (normally) nonmetallic detail. Those acids comprise each hydrogen and oxygen but their names make no reference to either hydrogen or oxygen.

A ternary acid is an acid that has the elements hydrogen and oxygen together with every other element, frequently a nonmetal. Or, they comprise hydrogen in addition to a polyatomic ion. An -ate complicated ion is named an -ic acid. as an example, HClO3(aq) consists of the chlorate ion and is known as chloric acid.

A binary acid is an acidic compound that always has hydrogen boned to every other chemical element, most of the time a nonmetal. Ternary acids are acidic compounds that comprise hydrogen and oxygen blended with some other detail. Binary acid has one style of a chemical element (hydrogen bonded to a nonmetal) .

Learn more about the ternary acid here https://brainly.com/question/13386259

#SPJ4

If you are given 0.25 mol of Fe and 0.5 mol of O2, what is the limiting reactant?

Answers

The limiting reactant will be Fe.

What are limiting reactants?

They are reactants that are available in limited quantities, as compared to other reactants, during the course of reactions.

From the equation of the reaction: [tex]4Fe + 3O_2 --- > 2Fe_2O_3[/tex]

The mole ratio of Fe to O2 is 4:3.

Thus, for 0.25 mol Fe, 0.25 x 3/4 = 0.1875 mol of O2 is required.

With 0.5 mol of O2 available, it means oxygen is in excess while Fe is limited in availability.

More on limiting reactants can be found here: https://brainly.com/question/14225536

#SPJ1

The limiting reactant from the calculations is Fe.

What is the limiting reactant?

The limiting reactant is the reactant that is present in the least amount in solution. Now we have the equation as; 4Fe+ 3O2 → 2Fe2O3

If 4 moles of Fe reacts with 3 moles of O2

0.25 mol of Fe  reacts with  0.25 mol *  3 moles/4 moles

= 0.1875 moles of O2

It then follows that the limiting reactant is Fe.

Learn More about limiting reactant:https://brainly.com/question/14225536

#SPJ1

A 2 kg cat is stuck in a tree 10 m above the ground. How much GPE does it have?
A. 250 J
B. 150 J
C. 200 J
D. 20 J

Answers

Answer:

196J, but C. at 200 J comes close.

Explanation:

Potential energy due to gravity is given by:

PEgrav = mass • g • height

where g is the acceleration due to gravity.  We'll use 9.8 N/kg (on Earth).

PEgrav = mass • g • height

PEgrav = (2 kg) • (9.8 N/kg) • (10 m)

PEgrav = 196 N*m

1 N*m = 1 Joule

PEgrav = 196 J

C. at 200 J comes close.  The solution probably used a value of g equal to 10 N/kg)

Answer:

20 J

Explanation:

Approximately how long would the entire nucleosynthesis event take tofinish in the early universe?

Answers

Because of the very short period in which nucleosynthesis occurred before it was stopped by expansion and cooling (about 20 minutes), no elements heavier than beryllium (or possibly boron) could be formed.

Big Bang nucleosynthesis occurred inside the first three minutes of the start of the universe and is chargeable for an awful lot of the abundance of H (protium), H (D, deuterium), He (helium-three), and He (helium-4).

Although He remains produced by stellar fusion and alpha decays and hint quantities of H remain produced by way of spallation and certain sorts of radioactive decay, most of the mass of the isotopes inside the universe is thought to be produced in the Big Bang.

The nuclei of these elements, together with a few Li and Be are taken into consideration to have been fashioned between 100 and 300 seconds after the Big Bang whilst the primordial quark-gluon plasma froze out to form protons and neutrons.

Learn more about nucleosynthesis here: https://brainly.com/question/13517558

#SPJ4

If sucrose is dissolved in water and the solution is kept overnight at room temperature, there is no detectable conversion to glucose and fructose. A solution of sucrose at room temperature does not readily decompose to form a solution of simple sugars because

Answers

The hydrolysis of sucrose to glucose and fructose is exergonic. However, if sucrose is dissolved in water and the solution is kept overnight at room temperature, there is no detectable conversion to glucose and fructose because the activation energy of the reaction is high.

Hence, Option (B) is correct answer.

What is Activation Energy ?

The minimum amount of energy that must be provided by a reacting molecules to get converted into the product is called Activation energy.

It is expressed as:

[tex]k = Ae^{\frac{-E_a}{RT}}[/tex]

where,

k = rate constant

A = pre-exponential factor

Eₐ = activation energy

R = universal gas constant

T = absolute temperature in K

Thus from the above conclusion we can say that The hydrolysis of sucrose to glucose and fructose is exergonic. However, if sucrose is dissolved in water and the solution is kept overnight at room temperature, there is no detectable conversion to glucose and fructose because the activation energy of the reaction is high.

Hence, Option (B) is correct answer.

Learn more about the Activation Energy here: https://brainly.com/question/1380484

#SPJ4

Disclaimer: The question was given incomplete on the portal. Here is the complete question.

Question: The hydrolysis of sucrose to glucose and fructose is exergonic. However, if sucrose is dissolved in water and the solution is kept overnight at room temperature, there is no detectable conversion to glucose and fructose. Why?

A. The change in free energy of the reaction is positive.

B. The activation energy of the reaction is high.

C. The change in free energy of the reaction is negative.

D. This is a hydrolysis reaction, so it requires an input of energy.

E. The free energy of the products is higher than the free energy of the reactants.

Other Questions
The area of a billboard sign is represented by (x+12)^2 square feet. Find the product 7. A pupil sat for a test in five subjects.He got a total of 380 marks. Howmany marks did he lose if everysubject was marked out of 100?A. 280 B. 500C. 120D 220 Select the most precise name of quadrilateral MNOP given the coordinates of M, N, O, and P. Use the rule x + 3 to find the missing number on the table.X Y0 33 6117 109 12 Sum of the second and third consecutive odd integers, simplified The end of the Stone Age (around 10,000-12,000 years ago) witnessed the change from hunter-gatherer societies to agricultural societies. This led to the rise of civilization.One of the societal changes that occurred at this time was that people A. migrated south ahead of advancing glaciers. B. relied more on meat than plants for their diets. C. began to interact and trade with distant societies. D. began to farm and live in permanent settlements.??? Question 3The system in place that prevents one branch of government from becoming more powerful than another is known as AfederalismBrule of lawpopular sovereigntyDchecks and balances What is the solution to the system of equations? 3x - 6y = - 12 x - 2y = - 8 Use the substitution method to justify that the given system of equations has no solution. Camila is an avid surfer who frequently visits Cocoa Beach. As she heads out to the waves, she sees a red flag in the sand indicating a rip current but decides to surf anyway. As she paddles out, she suddenly feels like she is being pulled out to sea. She panics and paddles harder, fighting against the current. She continues to paddle with the current but is knocked off her surfboard. Camila grabs ahold of her board to stay afloat and begins to yell to the lifeguard for help.Which of Camilas actions were appropriate for escaping the rip current? Check all that apply.1\A.choosing to surf despite the warning2\B.panicking and paddling harder3\C.paddling with the current4\D.using her surfboard to stay afloat5\E.yelling to the lifeguard for help An entrepreneur is considering the purchase of a coin-operated laundry. The current owner claims that over the past 5 years, the average daily revenue was $675 with a standard deviation of $75. A sample of 30 days reveals a daily average revenue of $625. If you were to test the null hypothesis that the daily average revenue was $675 with a level of significance level of 0.01. Which test would you use and why? a. Z-test of a population mean. b. T-test of population mean. c. Z-test of population proportion. d. t-test of a population proportion The value of 23 + 33 = ___. Numerical Answers Expected! help me asap which types of sentence does this belongs totrina and hareen went to a bar in hollywood to celebrate there anniversary Please tell me the answer to this. Very easy points if you ask me.x + 8x = ? I need someone to confirm it is this correct? Please help!!! If you can Help Me. For 10 points. Please 1. Lawrence's parents pay him a base allowance of $10 per week and $3.20 per hour for extra chores he completes.Mr. Williams pays Lawrence $7.80 per hour to fix broken washing machines at the laundromat. Which equationmodels Lawrence's total weekly income? In the story " Departure ", Early in the morning he plans to leave. How dies George feel abouthis upcoming departure?A He is confident about his future success.B O He is regretting the decision to leave.CHe is nervous about leaving.DHe is thrilled about his future plans. NEED HELP A mine extracts 2 tons of ore in an hour. Of the total ore extracted in a day, 4 tons is purchased by the government and more than 10 tons is sold to a mineral extractor. If the mine operates for x hours in a day, what is the simplest inequality that represents the number of hours the mine must operate to meet its obligations?A. x > 3B. x > 4C. x > 5D. x > 7 What is the quotient of 3/7 and 14?