00:02
Right, in this problem, i am trying to compare the molar volume of two gases, helium and neon.
00:09
These two gases are both at the same temperature and pressure.
00:14
So from what we learned about molar volume, we know if we have gas samples at the same temperature and pressure, their molar volume is going to be the same.
00:23
So once i calculate molar volume, it is going to be the same molar volume for both the helium and the neon.
00:30
To calculate molar volume, i realize that molar volume is defined as the volume in liters divided by the number of moles.
00:45
Thinking about our ideal gas equation, pv equals n -r -t, i find that v over n would be equal to rt over p.
00:58
So this gives me an equation to use to calculate the molar volume of each of these two gases.
01:05
I'm going to take r times t and divide by p.
01:10
The temperature we are given in this problem is 30 degrees celsius.
01:17
We know that temperature has to be in kelvin for us to use the ideal gas equation.
01:22
So i'm going to add 273 to that to give me 303 kelvin.
01:28
The pressure is 1 .10 tor.
01:37
For my universal gas constant, i'm going to select the one that uses tor, so that my units will ansel...