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ZIMSEC O-Level Chemistry

Energy profile diagrams

Energy profile diagrams in ZIMSEC O-Level Chemistry: what the syllabus expects you to know, the learning objectives and how to practise.
Subtopic20 practice questions1 lesson

Overview

Form 3 (competency matrix 8.8.2).

Learning objectives

What the syllabus expects you to be able to do.

  1. 7.1.9.3Draw energy profile diagrams for endothermic and exothermic reactions.
  2. 7.1.9.4Interpret energy profile diagrams.

Lessons

  • Reaction pathway (energy profile) diagrams

    30 min

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Sample question

A sample question on this topic. Answer it, check it, then read the worked answer.

Energy profile diagrams: sample question

1 mark

True or false: a catalyst lowers the activation energy of a reaction but does not change ΔH.

Is the statement true or false?

Turn Energy profile diagrams into a strength.

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