In a reversible reaction, if the forward reaction is exothermic, what can be sai

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Question: In a reversible reaction, if the forward reaction is exothermic, what can be said about the reverse reaction? (2022)

Options:

Correct Answer: It is endothermic

Exam Year: 2022

Solution:

If the forward reaction is exothermic, the reverse reaction must be endothermic, as it absorbs heat.

In a reversible reaction, if the forward reaction is exothermic, what can be said about the reverse reaction? (2022)

In a reversible reaction, if the forward reaction is exothermic, what can be said about the reverse reaction? (2022)

Step 1: Understand what a reversible reaction is. A reversible reaction can go in both directions: forward and backward.
Step 2: Identify what an exothermic reaction is. An exothermic reaction releases heat to the surroundings.
Step 3: Recognize that if the forward reaction is exothermic, it means heat is being released when the reactants turn into products.
Step 4: Know that the reverse reaction is the opposite of the forward reaction. It goes from products back to reactants.
Step 5: Conclude that if the forward reaction releases heat (exothermic), then the reverse reaction must absorb heat to proceed.
Step 6: Therefore, the reverse reaction is endothermic, meaning it requires heat from the surroundings.

Exothermic and Endothermic Reactions – In a reversible reaction, if the forward reaction releases heat (exothermic), the reverse reaction will absorb heat (endothermic).