2H₂S(g) 2H₂(g) + S₂(g) Kc = 0.0160 What is the value of Kc for the reaction below? 4H₂(g) + 2S₂(g) = 4H₂S(g) K = [?]

Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter13: Chemical Equilibrium
Section: Chapter Questions
Problem 117CP: A mixture of N2, H2, and NH3 is at equilibrium [according to the equationN2(g)+3H2(g)2NH3(g)] as...
icon
Related questions
Question
### Determining the Equilibrium Constant \( K_c \) for a Modified Reaction

#### Given Reaction:
\[ 2H_2S(g) \rightleftharpoons 2H_2(g) + S_2(g) \qquad K_c = 0.0160 \]

#### Question:
What is the value of \( K_c \) for the reaction below?
\[ 4H_2(g) + 2S_2(g) \rightleftharpoons 4H_2S(g) \]

#### Solution:

When manipulating equilibrium expressions, it's essential to understand how changes in coefficients and direction of the reaction affect the equilibrium constant. 

Here, the original reaction is:
\[ 2H_2S(g) \rightleftharpoons 2H_2(g) + S_2(g) \quad K_c = 0.0160 \]

To obtain the new reaction:
\[ 4H_2(g) + 2S_2(g) \rightleftharpoons 4H_2S(g) \]

we notice that it is the reverse reaction of the original one and the coefficients are doubled.

For the reverse reaction:
\[ K'_c = \frac{1}{K_c} \]

Doubling the coefficients of all substances in the reaction changes the equilibrium constant as follows:
\[ K''_c = \left( K'_c \right)^2 \]

#### Calculation:

1. First, reverse the original reaction:
\[ K'_c = \frac{1}{0.0160} \]

2. Calculate \( K'_c \):
\[ K'_c = 62.5 \]

3. Since the coefficients are doubled in the new reaction:
\[ K''_c = \left( 62.5 \right)^2 \]
\[ K''_c = 3906.25 \]

Thus, the equilibrium constant \( K_c \) for the new reaction is:
\[ K''_c = 3906.25 \]

#### Answer:
\[ K''_c = \boxed{3906.25} \]

For the user to input this value, there is an input box labeled "Kc of new reaction" and an "Enter" button next to it to submit their answer.
Transcribed Image Text:### Determining the Equilibrium Constant \( K_c \) for a Modified Reaction #### Given Reaction: \[ 2H_2S(g) \rightleftharpoons 2H_2(g) + S_2(g) \qquad K_c = 0.0160 \] #### Question: What is the value of \( K_c \) for the reaction below? \[ 4H_2(g) + 2S_2(g) \rightleftharpoons 4H_2S(g) \] #### Solution: When manipulating equilibrium expressions, it's essential to understand how changes in coefficients and direction of the reaction affect the equilibrium constant. Here, the original reaction is: \[ 2H_2S(g) \rightleftharpoons 2H_2(g) + S_2(g) \quad K_c = 0.0160 \] To obtain the new reaction: \[ 4H_2(g) + 2S_2(g) \rightleftharpoons 4H_2S(g) \] we notice that it is the reverse reaction of the original one and the coefficients are doubled. For the reverse reaction: \[ K'_c = \frac{1}{K_c} \] Doubling the coefficients of all substances in the reaction changes the equilibrium constant as follows: \[ K''_c = \left( K'_c \right)^2 \] #### Calculation: 1. First, reverse the original reaction: \[ K'_c = \frac{1}{0.0160} \] 2. Calculate \( K'_c \): \[ K'_c = 62.5 \] 3. Since the coefficients are doubled in the new reaction: \[ K''_c = \left( 62.5 \right)^2 \] \[ K''_c = 3906.25 \] Thus, the equilibrium constant \( K_c \) for the new reaction is: \[ K''_c = 3906.25 \] #### Answer: \[ K''_c = \boxed{3906.25} \] For the user to input this value, there is an input box labeled "Kc of new reaction" and an "Enter" button next to it to submit their answer.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 2 images

Blurred answer
Knowledge Booster
Chemical Equilibrium
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
Chemistry
Chemistry
Chemistry
ISBN:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
Chemistry: An Atoms First Approach
Chemistry: An Atoms First Approach
Chemistry
ISBN:
9781305079243
Author:
Steven S. Zumdahl, Susan A. Zumdahl
Publisher:
Cengage Learning
Chemistry
Chemistry
Chemistry
ISBN:
9781133611097
Author:
Steven S. Zumdahl
Publisher:
Cengage Learning
Introduction to General, Organic and Biochemistry
Introduction to General, Organic and Biochemistry
Chemistry
ISBN:
9781285869759
Author:
Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres
Publisher:
Cengage Learning
Chemistry for Engineering Students
Chemistry for Engineering Students
Chemistry
ISBN:
9781337398909
Author:
Lawrence S. Brown, Tom Holme
Publisher:
Cengage Learning
Chemistry & Chemical Reactivity
Chemistry & Chemical Reactivity
Chemistry
ISBN:
9781337399074
Author:
John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:
Cengage Learning