00:02
Hi there.
00:03
To answer this question, let's talk for a moment about pressure.
00:09
The pressure of a gas is caused by the collision of the particles, the gas particles, with the walls of their container.
00:31
And this is only going to depend upon how many particles are there, not their identity.
00:43
In other words, they are all moving around and colliding with the walls of the container.
00:48
Since they're in the same container, they have the same kinetic energy.
00:54
So pressure is only going to depend upon the number of particles, not what they are, not their identity.
01:11
Okay, so with that in mind, we can look at this picture.
01:14
We are trying to determine the partial pressure.
01:17
So partial pressure just means the individual pressures of each one that's there.
01:22
So we want to arrange these from lowest partial pressure.
01:28
To greatest.
01:43
Okay, so based on what i just said a moment ago, it only depends upon the number of particles, not the identity.
01:52
So the one with the lowest partial pressure is going to be the one that has the fewest number of particles...