In other words, if our kinetic energy or average kinetic energy of our molecules is to remain the same, and the pressure or the force per unit area exerted by or on the walls of my container is to remain the same, that means when we increase the number of moles, we also increase the number of molecules hitting the walls. And that means the only way to keep these two guys constant is if we increase the volume. That's exactly how our kinetic theory explains Abogro's Law. Now, once again, to recap, kinetic theory explains microscopic concepts. It explains how two individual gas molecules interact. The fact that their volume is so small that it's assumed to be zero.