6
QuizMultiple Choice

Shifts in Equilibrium

Question 6 • IA-Chemistry A Survey of Chemistry A

According to Le Chatelier’s principle, what always happens to the equilibrium of a reaction when the temperature is reduced?

Answer
A
It shifts to the right.
B
It shifts to the left.
C
It shifts in the exothermic direction.
D
It shifts in the endothermic direction.

Explanation

Reducing the temperature removes heat from the system. By Le Chatelier’s principle, equilibrium shifts in the direction that produces heat, which is the exothermic direction. Whether that is to the right or left depends on the particular reaction, so “it shifts to the right” and “it shifts to the left” are not always true.

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