In the exothermic forward reaction 2 SO2 + O2 ⇌ 2 SO3, lowering the temperature will favor the formation of more SO3. Which of the following best describes the effect?

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Multiple Choice

In the exothermic forward reaction 2 SO2 + O2 ⇌ 2 SO3, lowering the temperature will favor the formation of more SO3. Which of the following best describes the effect?

Explanation:
Lowering temperature in an exothermic reaction shifts the equilibrium toward the side that releases heat. Since the forward reaction 2 SO2 + O2 ⇌ 2 SO3 releases heat, cooling favors forming more SO3. Consequently, the concentration of SO3 increases while SO2 and O2 are consumed and their concentrations fall. So the best description is an increase in SO3.

Lowering temperature in an exothermic reaction shifts the equilibrium toward the side that releases heat. Since the forward reaction 2 SO2 + O2 ⇌ 2 SO3 releases heat, cooling favors forming more SO3. Consequently, the concentration of SO3 increases while SO2 and O2 are consumed and their concentrations fall. So the best description is an increase in SO3.

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