For the exothermic reaction: PCl₃(g) + Cl₂(g) ⇌ PCl₅(g), which of the following would shift the equilibrium toward the reactants?
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Increasing the pressure
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Increasing the temperature
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Adding more Cl₂
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Removing PCl₅
📝 Detailed explanation
For an exothermic reaction, heat is a product. Increasing the temperature shifts the equilibrium to the left (reactants) to absorb the added heat.
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