A flask is filled with PC15 to a pressure of 2.00 atm at 300°C and allowed to reach equilibrium according to the reaction: PC15(9) PC13(g) + Cl₂(g) Analysis shows the total pressure in the flask at equilibrium is 3.96 atm. Calculate the equilibrium constant Kp for the reaction. 3.96 (Your answer) 7.84 49.0 96.0 (Correct answer) 0.886

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### Equilibrium Constant Calculation

**Problem Statement:**

A flask is filled with \( \text{PCl}_5 \) to a pressure of 2.00 atm at 300°C and allowed to reach equilibrium according to the reaction:

\[ \text{PCl}_5(g) \rightleftharpoons \text{PCl}_3(g) + \text{Cl}_2(g) \]

Analysis shows the total pressure in the flask at equilibrium is 3.96 atm. Calculate the equilibrium constant \( K_p \) for the reaction.

**Answers:**

- 3.96 (Your answer)
- 7.84
- 49.0
- 96.0 (Correct answer)
- 0.886

**Explanation:**

The equilibrium constant \( K_p \) is calculated based on the change in pressure and the stoichiometry of the reaction. The correct answer provided is 96.0.
Transcribed Image Text:### Equilibrium Constant Calculation **Problem Statement:** A flask is filled with \( \text{PCl}_5 \) to a pressure of 2.00 atm at 300°C and allowed to reach equilibrium according to the reaction: \[ \text{PCl}_5(g) \rightleftharpoons \text{PCl}_3(g) + \text{Cl}_2(g) \] Analysis shows the total pressure in the flask at equilibrium is 3.96 atm. Calculate the equilibrium constant \( K_p \) for the reaction. **Answers:** - 3.96 (Your answer) - 7.84 - 49.0 - 96.0 (Correct answer) - 0.886 **Explanation:** The equilibrium constant \( K_p \) is calculated based on the change in pressure and the stoichiometry of the reaction. The correct answer provided is 96.0.
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