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Cambridge AS & A Level Physics

15.2Equation of state

Equation of state in Cambridge AS & A Level Physics: what the syllabus expects you to know, the learning objectives and how to practise.
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Learning objectives

What the syllabus expects you to be able to do.

  1. 15.2.1Recognise an ideal gas as one obeying pV ∝ T.
  2. 15.2.2Recall and use pV = nRT and pV = NkT.
  3. 15.2.3Recall that k = R/N_A.

Lessons

  • The mole and the ideal gas equation

    45 min

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Sample question

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Equation of state: sample question

1 mark

A fixed mass of ideal gas has its thermodynamic temperature doubled and its volume halved. What happens to its pressure?

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