00:01
This question, we're going to take a look at the gas law, specifically at boyle's law.
00:05
It says there's an inverse relationship between pressure and volume, or p1v1 equals p2v2.
00:11
So we have a mixture of two gases, and one of them initially has a volume of 275 milliliters at a pressure of 752 tor.
00:21
And the other is in a volume of 475 millimeters with an initial pressure of 722 tor.
00:28
So we can kind of look at these pressures as the partial pressures of the gases involved at a specific volume.
00:37
So pretty much what we're doing when we open that stopcock up is increasing the volume available to both of these gases.
00:44
The final volume then is going to be a combination of the two volumes or an addition of the two volumes that are present.
00:55
275 milliliters plus 475 milliliters.
00:59
Our final volume is going to be 750 milliliters because that entire volume of both containers is going to be available to both of the gases.
01:12
And so what we need to do is for each of the gases, take the initial volume and pressure and determine the new pressure or partial pressure of the gas when this final volume, or entire volume is available to that gas.
01:30
And so basically, the partial pressure of the first gas, we're going to call p2 here, is going to be a measure of in -tore...