If a given forward reaction is exothermic and the reactants and products in a flask initially are at equilibrium, what will happen when the temperature is raised?

A. The system will shift to the right (in the direction of the forward reaction).

B. The system will shift to the left (in the direction of the reverse reaction).

C. The system will not shift.

D. The rates of both the forward and reverse reactions immediately decrease.

Question

Chemistry

Monica Bray

14 August, 16:41

If a given forward reaction is exothermic and the reactants and products in a flask initially are at equilibrium, what will happen when the temperature is raised?

A. The system will shift to the right (in the direction of the forward reaction).

B. The system will shift to the left (in the direction of the reverse reaction).

C. The system will not shift.

D. The rates of both the forward and reverse reactions immediately decrease.

+3

Answers (1)

Know the Answer?

Ronnie · Answer 1

B. The system would shift to the left (in the direction of the reverse reaction).

Explanation:

Since the reaction system is exothermic (meaning it releases heat during the process), increasing the temperature will shift the equilibrium to the left, according to Le Charteliers's Principle so as to annul the effect of the contraint (heat) added to the system.