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Pressure Law

AQA A-level PhysicsGasesLesson 3 of 5

For a fixed mass of gas of constant volume, the pressure is directly proportional to the temperature or

p/T = constant

If a graph of pressure against temperature is plotted then a straight line through the origin is obtained.

Diagram

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Key terms in this lesson

Internal energy
The sum of the randomly distributed kinetic and potential energies of the atoms or molecules in a body.

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