Now, one thing that we deduced from the kinetic theory was that kinetic energy, then your molecule, is directly proportional to temperature. And that means if we have a gas system, a system of gas molecules, if we increase the overall temperature of our system, then on average, every molecule will have a higher kinetic energy. And that's because kinetic energy is proportional to temperature. So what happens in a system of gas molecules that is under constant temperature? Well, then, on average, the kinetic energy of any gas molecule, say gas molecule one, is the same as the kinetic energy, gas molecule number two. So let's equate these guys and let's see where that leads us.