00:01
So one of the big ideas in kinetic molecular theory is that the temperature is directly a function of the average kinetic energy of all the molecules.
00:15
Now, remember, the kinetic energy is equal to one -half mv squared.
00:21
And so in this case, since we're talking about the average kinetic energy, looking at the average velocity.
00:25
And so as the temperature increases, well, the mass of the molecules can't increase.
00:30
And so the thing that has to increase is going to be this velocity.
00:34
So temperature increasing is really saying that the average velocity of all of the molecules in this liquid are increasing.
00:41
And so if they have more speed, they're more likely to be able to escape the attractive forces between molecules.
00:47
Think about it like this...