JEE Main 9 Jan 2020 Shift 2 Solved Paper

A cylinder containing an ideal gas (0.1 mol of 1.0 dm3) is in thermal equilibrium with a large volume of 0.5 molal aqueous solution of ethylene glycol at its freezing point. If the stoppers S1 and S2 (as shown in the figure) are suddenly withdrawn, the volume of the gas in litres after equilibrium is achieved will be____.
(Given, Kf (water) =2.0K‌kg‌mol−1, R=0.08dm3‌atm‌K−1‌mol−1)