In a reaction at equilibrium, if the temperature is increased for an exothermic

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Question: In a reaction at equilibrium, if the temperature is increased for an exothermic reaction, what will happen? (2022)

Options:

Correct Answer: Shift to the left

Exam Year: 2022

Solution:

For an exothermic reaction, increasing the temperature shifts the equilibrium to the left, favoring the reactants.

In a reaction at equilibrium, if the temperature is increased for an exothermic reaction, what will happen? (2022)

In a reaction at equilibrium, if the temperature is increased for an exothermic reaction, what will happen? (2022)

Step 1: Understand what an exothermic reaction is. It is a reaction that releases heat.
Step 2: Know that in a chemical reaction at equilibrium, the forward and reverse reactions occur at the same rate.
Step 3: Recognize that increasing the temperature adds heat to the system.
Step 4: Apply Le Chatelier's Principle, which states that if a system at equilibrium is disturbed, it will shift to counteract the disturbance.
Step 5: Since the reaction is exothermic, adding heat will shift the equilibrium to the left, favoring the reactants.

Le Chatelier's Principle – This principle states that if a system at equilibrium is subjected to a change in temperature, pressure, or concentration, the system will adjust to counteract that change and restore a new equilibrium.
Exothermic Reactions – Exothermic reactions release heat, and increasing temperature for such reactions will shift the equilibrium towards the reactants.