00:01
We're given this balloon in this initial state shown on the left, and we want to know what happens when we increase the atmospheric pressure on that balloon.
00:09
With a final state of it resemble a, b, or c.
00:13
So that's what we want to find out in this problem.
00:16
And we're told that the temperature is held constant.
00:19
So we can use that information to help us solve this problem.
00:23
We start by looking at the ideal gas law, which is pv equals nrt, and we're told that temperature, is constant, but we know that r is a constant.
00:36
And if we look and count the air molecules in the balloon, we see that there are nine in each case.
00:41
And so the number of moles of air in that balloon is also constant.
00:46
We know that pv, the product of the pressure and volume of that gas inside the balloon, is therefore equal to a constant that we will call k.
00:57
And because of that, this relationship under the condition of constant temperature follows boyle's law, where p1v1 equals p2v2...