A gas, in a sealed container, is allowed to expand slowly so that its temperature does not change.
What happens to the molecules of the gas as a result of this expansion?
The average kinetic energy of the molecules decreases.
The average force exerted by a molecule during a collision with the container walls decreases.
There are less frequent collisions between the molecules and the container walls.
The volume of each individual molecule 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.