Question detail

What does activation energy refer to in a chemical reaction?

Try the question, check the answer, then read the explanation to understand the curriculum point.

At a glance

MCQ

Type

practice

Style

Topic

Exothermic and endothermic reactions

Question

  1. A. The energy released when products form
  2. B. The minimum energy needed for particles to react
  3. C. The energy absorbed during an endothermic reaction
  4. D. The energy required to break bonds in reactants

Answer

The minimum energy needed for particles to react

Explanation

Activation energy is defined as the minimum energy that reacting particles must possess for a reaction to occur.

Common mistake

Misunderstanding Collision Theory

Students often think that any collision between particles will result in a reaction, without considering the energy involved.

Emphasize that for a reaction to occur, particles must collide with sufficient energy, known as activation energy.

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recall MCQ 2: for a reaction to occur. | Exothermic and… | ExamCompanion