Skip to content

Course home

Sign up

14.3 Gas pressure and temperature

EasyMediumHard
12345678910111213
Question 9

A sealed, rigid steel cylinder contains a sample of helium gas. The cylinder is moved from a warm laboratory into a cryogenic cooling chamber, causing the temperature of the gas to decrease significantly.

The volume of the cylinder remains constant.

By considering the motion, speed, and collisions of the helium atoms, explain how this temperature decrease affects:

  • the average kinetic energy of the helium atoms
  • the pressure exerted by the gas on the inside walls of the cylinder.
[6]
Markscheme

14.3 Gas pressure and temperature Questions

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

38 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.

Question bank