Chemistry - Real Gas Question with Solution | TestHub

The critical constants${\mathrm{P}}_{\mathrm{C}}$&${\mathrm{T}}_{\mathrm{C}}$for methane are$45\mathrm{ }\mathrm{a}\mathrm{t}\mathrm{m}$and$180\mathrm{ }\mathrm{K}$.
Therefore,${\text{P}}_{\text{C}}\text{=}\frac{\text{a}}{{\text{27b}}^{\text{2}}}$,
${\text{T}}_{\text{C}}\text{=}\frac{\text{8a}}{\text{27 Rb}}$
$\Rightarrow \frac{{\mathrm{P}}_{\mathrm{C}}}{{\mathrm{T}}_{\mathrm{C}}}=\frac{\mathrm{R}}{8\mathrm{b}}$
$\Rightarrow \mathrm{ }\mathrm{b}=0.04\frac{\mathrm{L}}{\mathrm{m}\mathrm{o}\mathrm{l}}$.