(g) → PCI3(g) + Cl2(g) has Kp = 1.84 at a given temperature. What is the value p for the reaction PCI3(g) + Cl2(g)<>PCI5(g) at the same temperature? 1.84
(g) → PCI3(g) + Cl2(g) has Kp = 1.84 at a given temperature. What is the value p for the reaction PCI3(g) + Cl2(g)<>PCI5(g) at the same temperature? 1.84
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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![**Equilibrium Constants and Reversed Reactions**
When considering chemical equilibrium, it's important to understand how equilibrium constants change when reactions are reversed. Let's examine a practical example:
**Given Reaction:**
\[ \text{PCl}_5(g) \rightleftharpoons \text{PCl}_3(g) + \text{Cl}_2(g) \]
- Equilibrium constant (\(K_p\)) = 1.84 at a specific temperature.
**Question:**
What is the value of \(K_p\) for the reversed reaction at the same temperature?
\[ \text{PCl}_3(g) + \text{Cl}_2(g) \rightleftharpoons \text{PCl}_5(g) \]
**Answer:**
For a reaction that is reversed, the equilibrium constant is the reciprocal of the original equilibrium constant.
**Calculation:**
\[ K_p(\text{reversed}) = \frac{1}{K_p(\text{original})} = \frac{1}{1.84} \approx 0.5435 \]
Thus, the \(K_p\) for the reaction \(\text{PCl}_3(g) + \text{Cl}_2(g) \rightleftharpoons \text{PCl}_5(g)\) is approximately 0.5435 at the same temperature.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F0ce5f382-c21d-48ef-8c6b-42079a16ed57%2F21c7754f-3f0d-4e7f-9e8b-a02b37b34ad3%2Fan8gyeh_processed.png&w=3840&q=75)
Transcribed Image Text:**Equilibrium Constants and Reversed Reactions**
When considering chemical equilibrium, it's important to understand how equilibrium constants change when reactions are reversed. Let's examine a practical example:
**Given Reaction:**
\[ \text{PCl}_5(g) \rightleftharpoons \text{PCl}_3(g) + \text{Cl}_2(g) \]
- Equilibrium constant (\(K_p\)) = 1.84 at a specific temperature.
**Question:**
What is the value of \(K_p\) for the reversed reaction at the same temperature?
\[ \text{PCl}_3(g) + \text{Cl}_2(g) \rightleftharpoons \text{PCl}_5(g) \]
**Answer:**
For a reaction that is reversed, the equilibrium constant is the reciprocal of the original equilibrium constant.
**Calculation:**
\[ K_p(\text{reversed}) = \frac{1}{K_p(\text{original})} = \frac{1}{1.84} \approx 0.5435 \]
Thus, the \(K_p\) for the reaction \(\text{PCl}_3(g) + \text{Cl}_2(g) \rightleftharpoons \text{PCl}_5(g)\) is approximately 0.5435 at the same temperature.
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