00:01
Okay, so this question asks, what is the minimum volume of the flask in order that there's no liquid water present in the flask? so basically it wants you to calculate the volume of the vapor.
00:23
So in terms of gas, in terms of vapor, the first thing we need to think is definitely the ideal gas law.
00:33
So for ideal gas flow, we know pv equals to the nrt.
00:41
So think about in the flask, we want the volume.
00:46
And if the pressure is given, the temperature is given, and the mores is given, then we can get the volume.
00:55
And that's exactly what this question about, right? it gives the pressure, gives the mass, from the mass, you can calculate the more.
01:04
And moors of the water and it gives the temperature.
01:08
So now let's just write down those values.
01:12
So for the pressure, it gives us, which is 28 .6 millimeter mercury.
01:25
So we need to convert that into the posca, which is 28 .6 .303 .3 .3.
01:35
636 times the, i think, 1 milliliter mercury equals to 133 .322 pascal.
01:52
And this actually equals to, let's use the calculator, do the calculation 133 .3 .322...