Chemistry - Ideal Gas Question with Solution | TestHub

Root mean square velocity ($v_{r}ms$) is given by $\sqrt{\frac{3RT}{M}}=\sqrt{\frac{3P}{d}}$, which matches with (3).

Most probable velocity ($v_{m}p$) is given by $\sqrt{\frac{2RT}{M}}$, which matches with (4).

Average velocity ($v_{a}vg$) is given by $\sqrt{\frac{8RT}{\pi M}}=\sqrt{\frac{8P}{\pi d}}$, which matches with (2).

Kinetic Energy per mole (K.E of gas $mo{l}^{-1}$) is given by $\frac{3}{2}RT$, which matches with (1).

Therefore, the correct matching sequence is P $\to$ 3; Q $\to$ 4; R $\to$ 2; S $\to$ 1, corresponding to Option (B).