A rigid, sealed glass flask contains a fixed mass of gas. The flask is placed in a hot water bath, causing the temperature of the gas to increase.
Explain, in terms of the behavior and motion of the gas molecules, why the pressure exerted by the gas inside the flask 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.