A rigid container of constant volume contains a fixed mass of gas. The gas is heated. What happens to the pressure of the gas and what happens to the average kinetic energy of the gas molecules?
Pressure decreases; average kinetic energy decreases
Pressure decreases; average kinetic energy increases
Pressure increases; average kinetic energy decreases
Pressure increases; average kinetic energy increases
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.