Chemistry GCSE
Energy transfer
What Energy transfer means in Chemistry GCSE, as defined for AQA.
Definitions of Energy transfer
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Reference: AQA
The difference between the energy absorbed in bond breaking and the energy released in bond making appears as energy transferred to or from the surroundings, often as heat.
When a hydrocarbon fuel burns in oxygen, energy is transferred to the surroundings, usually as heat and light.
Energy is transferred from the surroundings to the reacting system, so the reaction mixture feels cold.
Topics that use Energy transfer
- Energy transfer during exothermic and endothermic reactions (AQA GCSE)
- Properties of hydrocarbons (AQA GCSE)
Related terms
- Exothermic reactions
- Bond breaking and bond making
- Choosing fuels for particular uses
- Combustion products
- Complete and incomplete combustion
- Conservation of energy
- Energy transfer in reactions
- Evaluating applications
Using Energy transfer in the exam
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