A sealed piston-cylinder system contains gaseous krypton.
Explain, in terms of atoms:
the effect of heating the gas (while keeping the volume constant) on the pressure of the krypton,
the effect of expanding the volume of the cylinder (while keeping the temperature constant) on the pressure of the krypton.
126 exam-style questions on CIE IGCSE Physics 2.1.3a The absolute scale of temperature. Each one has a worked solution and a mark scheme showing where the marks go.