00:01
Pressure is given, that is, 0 .2 mm of hg, converting pressure into pascal, comes out to be 26 .66 pascal.
00:17
Temperature is given, that is 20 degrees celsius, converting into kelvin.
00:23
It comes out to be 293 kelvin.
00:27
Mass of helium is given 4 kilogram per kelvin mole.
00:35
Now let n be the number of moles of helium.
00:49
So mass comes out to be 4n into 10 to power minus 3 kilogram.
00:59
This is the mass.
01:02
By using now we are using ideal gas law, that is pv is equal to nrt.
01:17
Where r is equal to 8 .3145 jule per mole kelvin.
01:28
Substituting the values here, we get 26 .66 v.
01:35
N is and we have to find rh 8 .3145 into days 293...