Combined Science GCSE
Flammability
What Flammability means in Combined Science GCSE, as defined for AQA.
Definitions of Flammability
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Reference: AQA
How easily a substance catches fire, which decreases with increasing molecular size because larger molecules need more energy and oxygen to vaporise and burn.
How easily a hydrocarbon ignites, which decreases as molecule size increases, so larger hydrocarbons are harder to ignite.
A chemical property describing how readily a hydrocarbon fuel burns in oxygen.
Topics that use Flammability
- Properties of hydrocarbons (AQA GCSE)
Related terms
- Boiling point
- Chemical reactions
- Combustion products
- Complete combustion
- Energy transfer
- Homologous series
- Incomplete combustion
- Intermolecular forces
Using Flammability in the exam
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