Question detail

What is activation energy?

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

  1. A. The energy required to break bonds in reactants
  2. B. The minimum energy needed for particles to react
  3. C. The energy released duringa chemical reaction
  4. D. The energy needed to form products

Answer

The minimum energy needed for particles to react

Explanation

The correct answer is The minimum energy needed for particles to react. This answer directly addresses the question: What is activation energy? 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

Confusing Activation Energy with Total Energy

Students often confuse activation energy with the total energy of the reactants or products, thinking it is the energy needed for the entire reaction.

Remember that activation energy is specifically the minimum energy required for particles to collide and react, not the total energy involved in the reaction.

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