Phosphorus pentachloride decomposes at high temperatures. PC15 (g) ⇒ PC13 (g) + Cl₂ (g) An equilibrium mixture at some temperature consists of 5.72 g of PC15, 4.86 g of PC13, and 3.59 g of Cl₂ in a 1.00-L flask. a If you add 1.31 g of Cl2, how will the equilibrium be affected? shift left shift right no shift will occur

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### Equilibrium of Phosphorus Pentachloride Decomposition

**Chemical Reaction:**

The decomposition of phosphorus pentachloride (\( \text{PCl}_5 \)) into phosphorus trichloride (\( \text{PCl}_3 \)) and chlorine gas (\( \text{Cl}_2 \)) occurs at high temperatures and is represented by the following chemical equation:

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

**Equilibrium Mixture:**

At a specific temperature within a 1.00-L flask, the equilibrium mixture consists of:

- 5.72 g of \( \text{PCl}_5 \)
- 4.86 g of \( \text{PCl}_3 \)
- 3.59 g of \( \text{Cl}_2 \)

**Question:**

If you add 1.31 g of \( \text{Cl}_2 \), how will the equilibrium be affected?

- Shift left
- Shift right
- No shift will occur

*Note:* The addition of chlorine gas (\( \text{Cl}_2 \)) is expected to shift the equilibrium position according to Le Chatelier's Principle. Consider how the system will adjust to the disturbance.
Transcribed Image Text:### Equilibrium of Phosphorus Pentachloride Decomposition **Chemical Reaction:** The decomposition of phosphorus pentachloride (\( \text{PCl}_5 \)) into phosphorus trichloride (\( \text{PCl}_3 \)) and chlorine gas (\( \text{Cl}_2 \)) occurs at high temperatures and is represented by the following chemical equation: \[ \text{PCl}_5(g) \rightleftharpoons \text{PCl}_3(g) + \text{Cl}_2(g) \] **Equilibrium Mixture:** At a specific temperature within a 1.00-L flask, the equilibrium mixture consists of: - 5.72 g of \( \text{PCl}_5 \) - 4.86 g of \( \text{PCl}_3 \) - 3.59 g of \( \text{Cl}_2 \) **Question:** If you add 1.31 g of \( \text{Cl}_2 \), how will the equilibrium be affected? - Shift left - Shift right - No shift will occur *Note:* The addition of chlorine gas (\( \text{Cl}_2 \)) is expected to shift the equilibrium position according to Le Chatelier's Principle. Consider how the system will adjust to the disturbance.
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