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14.3 Gas pressure and temperature

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Question 35
H

Air is compressed rapidly in a sealed pump. The plunger is then fixed in position and the pump is left to cool to its initial temperature. Which describes the cooling stage?

[1]
A

Mean particle kinetic energy decreases; pressure is unchanged; density decreases.

B

Mean particle kinetic energy is unchanged; pressure decreases; density increases.

C

Mean particle kinetic energy increases; pressure increases; density is unchanged.

D

Mean particle kinetic energy decreases; pressure decreases; density is unchanged.

Markscheme

14.3 Gas pressure and temperature Questions

  1. GCSE
  2. /Physics
  3. /14.3 Gas pressure and temperature

108 exam-style questions on Edexcel GCSE Physics 14.3 Gas pressure and temperature, covering 14.3.1 Gas pressure and particle motion, 14.3.2 Temperature and pressure at constant volume, 14.3.3 Absolute zero and the kelvin scale, 14.3.4 Compressing and expanding gases, 14.3.5 Volume and pressure at constant temperature, and 14.3.6 Doing work on a gas. Each one has a worked solution and a mark scheme showing where the marks go.

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