A cylinder containing an ideal gas (0.1 mol of 1.0$d{m}^3$ ) is in thermal equilibrium with a large volume of 0.5 molal aqueous solution of ethylene glycol at its freezing point. If the stoppers $S_1 and S_2$ (as shown in the figure) are suddenly withdrawn, the volume of the gas in litres equilibrium is achieved will be________ ( Given, ${\mathrm{K}}_{\mathrm{f}}\left(\mathrm{water}\right)=2.0\mathrm{K}\mathrm{kg}{\mathrm{mol}}^{-1}\mathrm{R}=0.08{\mathrm{dm}}^3\mathrm{atm}{\mathrm{K}}^{-1}{\mathrm{mol}}^{-1}$)