AQA GCSE Combined Science Trilogy · 8464
Specification 5.5.1.2, 5.5.1.3 · Paper 3
Revise: Reaction ProfilesOverall energy change: the gap between the reactant and product levels. This shows whether energy is released or taken in overall.
- Revise: The Energy Change of Reactions
The difference between the total energy needed to break reactant bonds and the total energy released when product bonds form.