A sample of gas is trapped in a rigid container. As the temperature of the gas is decreased, the pressure decreases.
Which statement is not correct?
The gas molecules have less kinetic energy on average.
The gas molecules hit the walls of the container with less force.
The gas molecules hit the walls of the container less frequently.
The average distance between the gas molecules decreases.
321 exam-style questions on CIE IGCSE Physics 2.1 Kinetic particle model of matter, covering 2.1.1 States of matter and changes of state, 2.1.2a Particle structure and motion in solids, liquids and gases, 2.1.2b Gas pressure and particle collisions, 2.1.2c Brownian motion, 2.1.3a The absolute scale of temperature, and 2.1.3b Pressure, volume and temperature of a gas. Each one has a worked solution and a mark scheme showing where the marks go.