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GCSE Physics · key term
The change from a liquid to a gas by boiling throughout the liquid.
Used by AQA and Edexcel
Specification 4.3.1.2 · Paper 1
Revise: Changes of stateBoiling and evaporation both produce a gas, but they are not identical processes. Evaporation happens at the surface and can occur below the boiling point; boiling occurs throughout a liquid when it reaches its boiling point.
Specification 14.5 · Paper 2
The rapid change from a liquid to a gas throughout the liquid at its boiling point.
Revise: Physical ChangesA liquid changes into a gas by evaporation or boiling, while a gas changes back into a liquid by condensation.
Distinguish evaporation from boiling: evaporation occurs at the surface and can happen below the boiling point; boiling occurs throughout a liquid at its boiling point.
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