Particle Model and Pressure - Paper 1

Question 1

Link motion of particles in a gas to temperature and pressure.

Answer 1

The molecules of a gas are in constant random motion.
The temperature of the gas is related to the average kinetic energy of the molecules.
Changing the temperature of a gas, held at constant volume, changes the pressure exerted by the gas.

Question 2

How does pressure exerted by a gas produce a force?

Answer 2

The pressure produces a net force at right angles to the wall of the gas container.