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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![**Title: Calculating the Equilibrium Constant for a Chemical Reaction**
**Equation to Determine:**
Given reaction:
\[ \text{P}_4(s) + 6 \text{Cl}_2(g) \rightleftharpoons 4 \text{PCl}_3(g) \]
**Objective:**
Express the equilibrium constant (\( K_c \)) for the above reaction.
**Key Notes:**
- Solids are not included in the equilibrium expression.
- For the reaction given, only gaseous components will appear in the \( K_c \) expression.
**Equilibrium Expression:**
For the reaction \[ \text{P}_4(s) + 6 \text{Cl}_2(g) \rightleftharpoons 4 \text{PCl}_3(g) \]
The equilibrium constant expression is:
\[ K_c = \frac{[\text{PCl}_3]^4}{[\text{Cl}_2]^6} \]
**Considerations:**
- \( [\text{PCl}_3] \) and \( [\text{Cl}_2] \) are the concentrations of PCl₃ and Cl₂ at equilibrium.
- Initial concentrations provided are \([\text{X}] = 0.10 M\), \([\text{Y}] = 5.00 M\), \([\text{Z}] = 5.00 M\).
Given these concentrations, assume they represent PCl₃ and Cl₂ as necessary for calculating \( K_c \) with experimental or specified data.
**Conclusion:**
Understanding the method to express and calculate the equilibrium constant helps predict how a reaction mixture at equilibrium will respond to changes in concentration and pressure. Adjust the calculation based on provided equilibrium concentrations to find \( K_c \).](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fbe983b18-ee33-44db-82aa-7c6bfcc1e549%2Fe71b8652-d8a0-4581-8f53-6751aa9c3c50%2Fnft9u5o_processed.jpeg&w=3840&q=75)
Transcribed Image Text:**Title: Calculating the Equilibrium Constant for a Chemical Reaction**
**Equation to Determine:**
Given reaction:
\[ \text{P}_4(s) + 6 \text{Cl}_2(g) \rightleftharpoons 4 \text{PCl}_3(g) \]
**Objective:**
Express the equilibrium constant (\( K_c \)) for the above reaction.
**Key Notes:**
- Solids are not included in the equilibrium expression.
- For the reaction given, only gaseous components will appear in the \( K_c \) expression.
**Equilibrium Expression:**
For the reaction \[ \text{P}_4(s) + 6 \text{Cl}_2(g) \rightleftharpoons 4 \text{PCl}_3(g) \]
The equilibrium constant expression is:
\[ K_c = \frac{[\text{PCl}_3]^4}{[\text{Cl}_2]^6} \]
**Considerations:**
- \( [\text{PCl}_3] \) and \( [\text{Cl}_2] \) are the concentrations of PCl₃ and Cl₂ at equilibrium.
- Initial concentrations provided are \([\text{X}] = 0.10 M\), \([\text{Y}] = 5.00 M\), \([\text{Z}] = 5.00 M\).
Given these concentrations, assume they represent PCl₃ and Cl₂ as necessary for calculating \( K_c \) with experimental or specified data.
**Conclusion:**
Understanding the method to express and calculate the equilibrium constant helps predict how a reaction mixture at equilibrium will respond to changes in concentration and pressure. Adjust the calculation based on provided equilibrium concentrations to find \( K_c \).
Expert Solution
Step 1
Equilibrium constant expression is the ratio of gaseous product to the gaseous reactant and its coefficient present in its power of concentration.
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