Explain, in terms of the behavior of molecules, why heating a gas in a sealed container of fixed volume causes the pressure on the walls of the container to increase.
Complete the following two sentences.
(i) At constant pressure, the volume of a gas increases as its temperature __________.
(ii) At constant temperature, the volume of a gas increases as its pressure __________.
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.