Which of the following statements are correct according to Kinetic Molecular Theory?
a) The mean kinetic energy of a collection of particles, KE,is proportional to the absolute temperature,T.
b) The collisions between particles result in changes to the direction of their movement and their speed, but the average kinetic energy is preserved.
c) The most probable speed of a gas particle is also the speed of a particle with the average kinetic energy of the entire sample.
d) Molecules have kinetic energy: they are in constant motion in all states.