which statement is not a postulate of the kinetic molecular theory? which statement is not a postulate of the kinetic molecular theory? the attractive or repulsive forces between the gas molecules resulting in collisions that involve a slight loss of energy. the pressure of a gas in a container results from collisions between the gas molecules and the walls of the container. the volume of the gas molecules are negligibly small compared to the volume of the container. the root mean square speed of the gas molecules increases as the kelvin temperature of the gas increases.