Question 34
FA student investigates how the pressure of a gas changes with temperature.
The Figure shows the apparatus. The flask of air is sealed and has a fixed volume.
Figure
a.[1]
Give one variable that the student must keep constant in this investigation.
b.[1]
The student heats the water.
State what happens to the reading on the pressure gauge.
c.[3]
Explain, in terms of particles, why the reading on the pressure gauge changes.
d.[1]
Suggest why the student waits a few minutes after each change in the water temperature before taking a reading.
14.3 Gas pressure and temperature Questions
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.