Identify the correct labels of $\mathrm{A},\mathrm{B}$ and $\mathrm{C}$  in the following graph from the options given below

Root mean square speed $\left({\mathrm{V}}_{\mathrm{r}\mathrm{m}\mathrm{s}}\right)$ ; most probable speed $\left({\mathrm{V}}_{\mathrm{m}\mathrm{p}}\right)$ ; Average $\mathrm{s}\mathrm{p}\mathrm{e}\mathrm{e}\mathrm{d}?\left({\mathrm{V}}_{\mathrm{a}\mathrm{v}}\right)$

 

Correct order of van der Waals constant b of given gases is

Match the following.

A gas at 300 K and 10 bar has molar volume 10% more than that for an ideal gas under the same conditions. The correct option about the gas and its compressibility factor (Z) is

For an ideal system at thermal equilibrium, the velocity distribution of the constituting particles

Which of the following gases can be liquefied most easily?