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Cambridge AS & A Level Chemistry

4.1The gaseous state: ideal and real gases and pV = nRT

The gaseous state: ideal and real gases and pV = nRT in Cambridge AS & A Level Chemistry: 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. 4.1.1Explain gas pressure in terms of molecular collisions with the container walls.
  2. 4.1.2State that ideal gases have zero particle volume and no intermolecular attractions.
  3. 4.1.3Use pV = nRT in calculations, including finding Mr.

Lessons

  • The gaseous state: kinetic theory and the ideal gas equation

    40 min

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Sample question

A sample question on this topic. Answer it, check it, then read the worked answer.

The gaseous state: ideal and real gases and pV = nRT: sample question

1 mark

Under which conditions does a real gas behave most like an ideal gas?

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