22
QuizMultiple Choice

Photosynthesis and Respiration — Test

Question 22 • 26-27 - C - RUSD Biology in the Living Earth

Which statement best describes the relationship between activation energy and rate of reaction?

Answer
A
Reducing the activation energy can increase the rate of a reaction.
B
Reducing the activation energy can decrease the rate of a reaction.
C
Increasing the reaction energy does not alter the rate of reaction.
D
Increasing the activation energy can increase the rate of a reaction.

Explanation

At a given temperature, lowering the activation energy means more reactant particles have enough energy to react when they collide. This increases the number of successful collisions per unit time, so the reaction rate increases. Therefore, “Reducing the activation energy can increase the rate of a reaction” is correct.

AI-written and checked against the verified answer.

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