20 According to the kinetic molecular theory for an ideal gas, all gas particles(1) are in random, constant, straight-line motion
(2) are separated by very small distances relative to their sizes
(3) have strong intermolecular forces
(4) have collisions that decrease the total energy of the system
According to the kinetic molecular theory for an ideal gas, all gas particles "have collisions that decrease the total energy of the system" but this is not always the case.
