The piston shown in the figure is moved downwards such that the vapour volume is decreased by 246.3cc. How many grams of H_(2)Ois condensed? (Assume aqueous tension at 27°C is 360 mm Hg).

The piston shown in the figure is moved downwards such that the vapour

1.	The piston shown in the figure is moved downwards such that the vapour volume is decreased by 246.3cc. How many grams of H_(2)Ois condensed? (Assume aqueous tension at 27°C is 360 mm Hg).
Answer» 1.8 gram 0.09 gram 0.9 gram 0.18 gram Solution :`PV = (WRT)/M` `W = (0.5 XX 0.2463 xx 18)/(0.0821 xx 300) = 0.09 GM`.