Using the kinetic Theory explain saturation vapour pressure

Answer 1

The kinetic theory of gases states that the molecules of a gas are in constant motion and that the pressure of a gas is due to the collisions of the molecules with the walls of the container. Saturation vapour pressure is the pressure of a vapour in equilibrium with its liquid or solid phase at a given temperature. This pressure is determined by the kinetic energy of the molecules of the vapour. At a given temperature, the molecules of the vapour have a certain average kinetic energy. As the temperature increases, the average kinetic energy of the molecules increases, resulting in an increase in the saturation vapour pressure. At the boiling point of the liquid, the saturation vapour pressure is equal to the atmospheric pressure, and the liquid boils.