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State variables and SI units

State variables and SI units

Two sealed gas containers showing the same temperature and amount of gas; the smaller container has more frequent wall collisions and higher pressure A gas is described by pressure ppp, volume VVV, temperature TTT, and amount of substance nnn. Pressure comes from molecules colliding with the container walls.

Ideal gases Lesson

  1. A Level
  2. /Physics
  3. /Ideal gases

Step-by-step lessons on Edexcel A Level Physics Ideal gases. Each one builds up to exam-style questions. Physics is one of the most mathematically demanding A Levels -- at least 40% of the marks across the three papers require maths skills at Level 2 (GCSE) standard or above, so build calculation and graph-handling fluency alongside the conceptual content from the start.

Lessons