A laboratory team cools a gas in a sealed rigid reference chamber used to check pressure sensors.
Which describes how cooling affects the particles’ average kinetic energy and how often they collide with the chamber walls?
Average kinetic energy falls; collisions with the walls happen less often.
Average kinetic energy rises; collisions with the walls happen less often.
Average kinetic energy rises; collisions with the walls happen more often.
Average kinetic energy falls; collisions with the walls happen more often.
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.