Question detail
How do catalysts affect the activation energy of a reaction?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Rate of reaction
Question
- A. They increase the activation energy.
- B. They have no effect on activation energy.
- C. They decrease the activation energy.
- D. They change the activation energy to a fixed value.
Answer
They decrease the activation energy.
Explanation
The correct answer is They decrease the activation energy.. This answer directly addresses the question: How do catalysts affect the activation energy of a reaction? It matches the approved Chemistry 8462 learning objective and the linked subtopic. The other options are incorrect because they either change the rate, catalyst, reversible reaction, equilibrium, or graph context, or they do not answer the exact point being tested.
Common mistake
Misunderstanding Catalyst Function
Students often think that catalysts are consumed in the reaction.
Remember that catalysts speed up reactions without being used up, allowing them to be reused in multiple reactions.
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