BRAINCAKE

Charles' Law

AQA A-level PhysicsGasesLesson 2 of 5

It can be shown, using a glass tube open at one end containing dry air trapped in the tube by a suitable liquid, that for a fixed mass of gas, the volume of the gas V is directly proportional to its temperature T provided its pressure is kept constant.

Diagram

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Key terms in this lesson

Absolute zero
The lowest possible temperature, 0 kelvin, at which a substance has minimum internal energy.

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