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Equation of the gas state processes

Problem 2.3

A vessel of volume V=20V=20 l contains a mixture of hydrogen and helium at a temperature t=20∘Ct=20{ }^{\circ} \mathrm{C} and pressure p=2.0p=2.0 atm. The mass of the mixture is equal to m=5.0 g.m=5.0 \mathrm{~g} . Find the ratio of the mass of hydrogen to that of helium in the given mixture.

Reveal Answer
m1/m2=(1−a/M2)/(a/M1−1)=0.50, where a=mRT/pVm_{1} / m_{2}=\left(1-a / M_{2}\right) /\left(a / M_{1}-1\right)=0.50, \text { where } a=m R T / p V
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