Combined Science GCSE
Exothermic and endothermic processes
What Exothermic and endothermic processes means in Combined Science GCSE, as defined for AQA.
Definition of Exothermic and endothermic processes
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Reference: AQA
A negative result means more energy is released than absorbed, so the reaction is exothermic; a positive value indicates an endothermic reaction.
Topics that use Exothermic and endothermic processes
- The energy change of reactions (HT only) (AQA GCSE)
Related terms
- Bond breaking
- Bond breaking and bond formation
- Conservation of energy in chemical reactions
- Endothermic reaction
- Energy transfer to and from the surroundings
- Exothermic and endothermic reactions
- Exothermic reaction
- Overall energy change of a reaction
Using Exothermic and endothermic processes in the exam
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