Carbon disulfide is a foul-smelling solvent that dissolvessulfur and other nonpolar substances. It can be made byheating sulfur in an atmosphere of methane:4 CH4(g) + S8(s) (equilibrium arrows) 4 CS2(g) +8 H2(g)Starting with the appropriate data in Appendix 4, calculatethe values of Kp for the reaction at 25°C and 500°C.(Appendix 4: CH4= -50720J, S8= 0, CS2= 65100J, H2=0

Question
Asked Oct 15, 2019

Carbon disulfide is a foul-smelling solvent that dissolves
sulfur and other nonpolar substances. It can be made by
heating sulfur in an atmosphere of methane:
4 CH4(g) + S8(s) (equilibrium arrows) 4 CS2(g) +8 H2(g)

Starting with the appropriate data in Appendix 4, calculate
the values of Kp for the reaction at 25°C and 500°C.

(Appendix 4: CH4= -50720J, S8= 0, CS2= 65100J, H2=0

check_circleExpert Solution
Step 1

The balanced chemical reaction is given below.

4CH, (g)+S, (s) 4CS, (g) +8H, (g)
help_outline

Image Transcriptionclose

4CH, (g)+S, (s) 4CS, (g) +8H, (g)

fullscreen
Step 2

Heat of the reaction can be calculated as shown below.

AH
Enthapyof products -Enthalpy of reactants
-(4x 65100J) (8x0)]-[{4x (-50720J)} + (0)]
X
= 463.280 kJ
help_outline

Image Transcriptionclose

AH Enthapyof products -Enthalpy of reactants -(4x 65100J) (8x0)]-[{4x (-50720J)} + (0)] X = 463.280 kJ

fullscreen
Step 3

Suppose the change in enthalpy of the reaction is 1219.1 J/K. The chang...

298 K
At T
AG AH TAS
an
463280J-(298K x1219.1J/ K)
99988.2J/mol.
The relationship between Gibb's free energy and equilibrium constant of a reaction is given
below
AG'-2.303 RT log K
Thus the value of equilibrium constant at T 298 K is given below.
AG-2.303RTlog K
AG
log K
2.303RT
99988.2J/mol
-17.524
2.303x8.314JK'molx 298K
K antilog(17.524) 2.99 x1018.
help_outline

Image Transcriptionclose

298 K At T AG AH TAS an 463280J-(298K x1219.1J/ K) 99988.2J/mol. The relationship between Gibb's free energy and equilibrium constant of a reaction is given below AG'-2.303 RT log K Thus the value of equilibrium constant at T 298 K is given below. AG-2.303RTlog K AG log K 2.303RT 99988.2J/mol -17.524 2.303x8.314JK'molx 298K K antilog(17.524) 2.99 x1018.

fullscreen

Want to see the full answer?

See Solution

Check out a sample Q&A here.

Want to see this answer and more?

Solutions are written by subject experts who are available 24/7. Questions are typically answered within 1 hour*

See Solution
*Response times may vary by subject and question
Tagged in

Science

Chemistry

Related Chemistry Q&A

Find answers to questions asked by student like you

Show more Q&A add
question_answer

Q: What is the empirical formula of an oxide containing 49.5% manganese? (Hint:Oxide = compound of Mn w...

A: The moles of manganese and oxygen present in the oxide are calculated as

question_answer

Q: Use the equation for the question.P4O10 + PCl5--> POCl3 When 42.66 grams of PCl5 react with exces...

A: Theoertical yield of POCl3 is calculated as,

question_answer

Q: Please check if I did this right. If not please help

A: (a)Two compounds are considered as constitutional isomers if they have same molecular formula but di...

question_answer

Q: Write an equation for the reaction of CH2=CHCH2CH3 with each of the following  reagents: a. H2O, H+ ...

A: Hydration:When alkene is undergoes hydration with water in the presence of acid like sulfuric acid g...

question_answer

Q: a 0.00959 M solution of a weak base has a pH of 9.33. What is the Ka for its conjugate acid?

A: Concentration of OH- is calculated as follows,

question_answer

Q: Suppose there are two known compounds containing the generic elements X and Y. You have a 1.00 g sam...

A: Given information:Mass of sample = 1.00 gMass of X in first sample = 0.330 gMass of X in other sampl...

question_answer

Q: Question 1

A: Molarity (M) is defined as the concentration of a solution expressed as the number of moles of solut...

question_answer

Q: I dont understand what they are asking me ice tried different answers and the continue to be wrong

A: Given, green spheres represent Chlorine atoms, yellow-green spheres represent Fluorine atoms and whi...

question_answer

Q: How many liters of pure water will be required to disslove 0.885g of solid lead iodate, if the water...

A: First the moles of Pb(IO3)2 present in given grams is calculated as below,Water already contains Pb(...