00:05
So this problem gives us a sample of gas that occupies 5 .6 liters.
00:12
And at that volume and the temperature, which is not going to change in this problem, the pressure is 735 millimeters of mercury.
00:22
Question asks, if we allow the gas to expand to occupy 9 .4 liters, what is the new pressure? now, again, we're going to assume that the temperature hasn't changed, because if it did, then that would also affect the pressure.
00:39
But if it's simply relating volume and pressure, liters and millimeters of mercury, well, in this case, it's just an application of boyle's law.
00:50
And boyle's law, it states that the pressure initially times the volume initially, well, that will be equal to the final pressure times the final volume.
01:12
Now, in this case, we have values of initial pressure, initial volume.
01:19
The 735 million meters of mercury is the initial pressure, 5 .6 meters is the initial volume.
01:26
And we also have the final volume.
01:29
So what we'll do is we will just solve boyle's law for p2.
01:35
By dividing out volume 2 from both sides...