**Equilibrium Constant Expression for Reactions**This exercise requires you to select the equilibrium constant expression for the following reaction:\[ 2HBr (g) \rightleftharpoons H_2 (g) + Br_2 (g) \]**Part A**Given the equilibrium reaction:\[ 2HBr(g) \rightleftharpoons H_2(g) + Br_2(g) \]Choose the correct equilibrium constant expression $ K_c $:1. $ K_c = \frac{[H_2] [Br_2]}{[HBr]^2} $2. $ K_c = \frac{2[HBr]}{[H_2] [Br_2]} $3. $ K_c = \frac{[HBr]^2}{[H_2] [Br_2]} $Provide your answer by selecting the appropriate option.---**Submit Button:**After making your selection, click the "Submit" button to register your answer.---**Important:**- Ensure you understand the concept of equilibrium constant expressions.- The equilibrium constant $ K_c $ for a reaction $ aA + bB \rightleftharpoons cC + dD $ is expressed as: \[ K_c = \frac{[C]^c[D]^d}{[A]^a[B]^b} \]---**© 2022 Pearson Education Inc. All rights reserved.**- [Terms of Use](#)- [Privacy Policy](#)- [Permissions](#)- [Contact Us](#)

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Answered: Select the equilibrium constant…

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Chemistry

Select the equilibrium constant expression for each of the following reactions: Part A 2HBr(g) H₂(g) + Br2(g) 1

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

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Question

**Equilibrium Constant Expression for Reactions**

This exercise requires you to select the equilibrium constant expression for the following reaction:

\[ 2HBr (g) \rightleftharpoons H_2 (g) + Br_2 (g) \]

**Part A**

Given the equilibrium reaction:
\[ 2HBr(g) \rightleftharpoons H_2(g) + Br_2(g) \]

Choose the correct equilibrium constant expression $ K_c $:

1. $ K_c = \frac{[H_2] [Br_2]}{[HBr]^2} $
2. $ K_c = \frac{2[HBr]}{[H_2] [Br_2]} $
3. $ K_c = \frac{[HBr]^2}{[H_2] [Br_2]} $

Provide your answer by selecting the appropriate option.

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**Submit Button:**

After making your selection, click the "Submit" button to register your answer.

---

**Important:**
- Ensure you understand the concept of equilibrium constant expressions.
- The equilibrium constant $ K_c $ for a reaction $ aA + bB \rightleftharpoons cC + dD $ is expressed as:
\[ K_c = \frac{[C]^c[D]^d}{[A]^a[B]^b} \]

---

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