Energy ChangesDiagram

Reaction Profile Diagrams

Part of Reaction Profiles — GCSE Chemistry

This diagram covers Reaction Profile Diagrams within Reaction Profiles for GCSE Chemistry. Revise Reaction Profiles in Energy Changes for GCSE Chemistry with 28 exam-style questions and 15 flashcards. This is a high-frequency topic, so it is worth revising until the explanation feels precise and repeatable. It is section 2 of 13 in this topic. Focus on the labels, the relationships between parts, and the explanation that turns the diagram into an exam-ready answer.

Topic position

Section 2 of 13

Practice

28 questions

Recall

15 flashcards

📊 Reaction Profile Diagrams

Figure 1: Reaction profiles for exothermic and endothermic reactions, showing activation energy and ΔH

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Read this section alongside the surrounding pages in Reaction Profiles. That gives you the full topic sequence instead of a single isolated revision point.

The Energy Hill Interactive Profile Diagrams How It Works: Reading and Drawing Reaction Profiles Deep Dive: Activation Energy

Practice Questions for Reaction Profiles

What does activation energy represent on a reaction profile?

A. The minimum energy particles need to react
B. The total energy released during the reaction
C. The energy stored in the reactants
D. The difference in energy between products and reactants

1 markfoundation

Explain how a catalyst affects the activation energy shown on a reaction profile. [2 marks]

2 marksstandard

Quick Recall Flashcards

What does the y-axis show on a reaction profile?

Energy

What is activation energy?

The minimum energy particles need to react when they collide

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Interactive Profile Diagrams