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Cambridge IGCSE Chemistry practice

What is activation energy (Ea)?

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MCQ

Type

cambridge_mcq

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Topic

Exothermic and endothermic reactions

Exam-style question

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What is activation energy (Ea)?.

  1. A.The energy required to break bonds
  2. B.The minimum energy required for colliding particles to react
  3. C.The energy released during a reaction
  4. D.The energy needed to form products

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Paper 4 structured question: Exothermic and endothermic reactions

Paper 4Theory (Extended)1 marks

Description

Activation Energy

Activation energy is the minimum energy required for colliding particles to undergo a reaction. It plays a crucial role in determining the rate of chemical reactions.

  1. a

    State the definition of activation energy.

    Aim for approximately 1 distinct marking point.

    [1]