18
QuizMultiple Choice

Shifts in Equilibrium — Unit test

Question 18 • IA-Chemistry A Survey of Chemistry A

According to Le Chatelier’s principle, which statement is true?

Answer
A
The equilibrium constant is unchanged by temperature changes.
B
The equilibrium constant changes with a change in temperature.
C
The equilibrium constant increases with the concentration of reactants.
D
The equilibrium constant decreases with the concentration of products.

Explanation

The equilibrium constant depends on temperature, so changing the temperature can change its value. Changing reactant or product concentrations may shift the equilibrium position, but it does not change the equilibrium constant at a fixed temperature. Therefore, the true statement is that the equilibrium constant changes with a change in temperature.

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