A vibration-isolating mount contains a fixed mass of gas in a sealed chamber that can change volume.
Initially, the gas has a volume of 120 cm3 at a pressure of 105 kPa. The gas is compressed until its pressure is 175 kPa. It is then allowed to expand until its pressure is 140 kPa.
The temperature of the gas remains constant and no gas escapes.
Calculate the increase in volume as the pressure falls from 175 kPa to 140 kPa.
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.