00:01
So, the volume of nitrogen v we are having 0 .5 cubic meters right.
00:08
T is minus 21 degree celsius.
00:11
P is 1356 kilo pascal's.
00:18
So, therefore for us to figure out this using the ideal gas equation it is easier right.
00:26
We know that pv equals to nrt right.
00:30
So, you can therefore say that m will be equal to pv over rt m right where we have 1356 multiply by 0 .5 right.
00:47
And remember we have the mass right of this nitrogen right molar mass we have 28 .01 kilogram per kilo mole.
01:04
So, we divide that by 8341 divided by 28 .01.
01:12
This value here is r.
01:19
So, we multiply that by temperature minus 71 plus 273.
01:26
So, this value should be equal to 11 .27 kilogram.
01:36
Moving on to part b using the critical value or you know this using basically compressibility charts...