00:04
A gas occupies 72 .1 as standard temperature and pressure stp.
00:17
So stp tells you the temperature is 298 .15 kelvin and also tells you that the pressure is 101 325 kelv.
00:34
So the question is, what temperature would the gas occupy? so you want to know what the temperature, that now you have a gas that occupies 85 .9 liter at a pressure that is 93 .6k.
01:04
So this is a v1.
01:07
You have the t1.
01:09
So of course, we have to use ideal gas law.
01:15
We can first write down the idea gas law, which is pv equals to nrt.
01:27
So from the question we know a gas occupies, so what's never changed is the mores of the gas.
01:36
So from here, we know that the pv, right, we're equals to nr, we can regard that as a constant times the temperature.
01:55
So here we can write down two formulas that's p1 v1 equals to nr times t1...