00:03
So this question asks for the assumptions of the kinetic molecular theory, and the way i think this is what makes a gas behave in an ideal way.
00:13
And the major takeaway is that an ideal gas is a predictable gas.
00:27
That's why we care, because these models apply, these equations apply if our gas is predictable.
00:34
So what makes a gas predictable? well, the particles are going to move in a straight line.
00:40
They are not going to be affected by anything else if they bounce.
00:43
Ideally, they don't bounce very much at all, but if they do bounce, they bounce in a perfectly elastic collision.
00:50
So in order for those things to be true, one thing that we want is that our particles have no volume or negligible volume.
01:09
Obviously, particle can't have no volume, but the assumption is that they have no volume whatsoever, so that they can't interact with each other very much.
01:20
Next, we want to make sure that we have no imfs.
01:24
So we don't have any electromagnetic interactions, such as polar molecules, ionic bonds, london dispersion forces.
01:44
We don't want any of those things that are going to cause these particles to attract each other and pull them off course.
01:51
Because again, we want them to be moving in a perfectly straight line.
01:56
They're going to be moving pretty much in random directions, but we don't want them to be interacting with each other.
02:05
Generally speaking, we need to make sure that the kinetic energy is proportional to temperature...