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.
📊 Reaction Profile Diagrams
Figure 1: Reaction profiles for exothermic and endothermic reactions, showing activation energy and ΔH
Practice questions for Reaction Profiles
What does activation energy represent on a reaction profile?
Explain how a catalyst affects the activation energy shown on a reaction profile. [2 marks]
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