What happens if activation energy is lowered?

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Prepare for the WJEC GCSE Chemistry Exam with multiple choice questions and detailed explanations. Enhance your knowledge and boost your confidence. Get exam-ready today!

Multiple Choice

What happens if activation energy is lowered?

Explanation:
Lowering activation energy reduces the energy barrier that reactants must overcome to form products. With a smaller barrier, more particles in a given amount of reactants have enough energy to reach the transition state in a collision, so a larger fraction of collisions lead to a reaction. That means the reaction proceeds faster, so the rate increases. The products themselves don’t change just because the barrier is lowered; you’re simply speeding up how quickly you reach those products.

Lowering activation energy reduces the energy barrier that reactants must overcome to form products. With a smaller barrier, more particles in a given amount of reactants have enough energy to reach the transition state in a collision, so a larger fraction of collisions lead to a reaction. That means the reaction proceeds faster, so the rate increases. The products themselves don’t change just because the barrier is lowered; you’re simply speeding up how quickly you reach those products.

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