This diagram covers Interactive 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 3 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.
📊 Interactive Profile Diagrams
Exothermic Reaction
Products LOWER than reactants
ΔH is negative
Endothermic Reaction
Products HIGHER than reactants
ΔH is positive
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 is activation energy?
The minimum energy particles need to react when they collide
What does the y-axis show on a reaction profile?
Energy