Chemistry - Ideal Gas Question with Solution | TestHub

Paragraph: $\mathbf{X}$ and $\mathbf{Y}$ are two volatile liquids with molar weights of $10\mathrm{g}{\mathrm{mol}}^{-1}$ and $40\mathrm{g}{\mathrm{mol}}^{-1}$ respectively. Two cotton plugs, one soaked in $\mathbf{X}$ and the other soaked in $\mathbf{Y}$, are simultaneously placed at the ends of a tube of length $L=24\mathrm{cm}$, as shown in the figure. The tube is filled with an inert gas at $1$ atmosphere pressure and a temperature of $300\mathrm{K}$. Vapours of $\mathbf{X}$ and $\mathbf{Y}$ react to form a product which is first observed at a distance $\mathbf{d}\mathrm{cm}$ from the plug soaked in $\mathbf{X}$. Take $\mathbf{X}$ and $\mathbf{Y}$ to have equal molecular diameters and assume ideal behaviour for the inert gas and the two vapours.