Liquids A (molar mass=100 g/mol and density =1.25 g/ml) and B (molar mass=50 g/mol and density =1.0g/ml) form an ideal solution . The molar volume of liquid ‘A’ increases by a factor of 3800 as it vaporizes at ${27}^{0}C$ and that of liquid ‘B’ increases by a factor of 7600 at ${27}^{0}C$. A solution of liquids ‘A’ and ‘B’ at ${27}^{0}C$ has a vapor pressure of 54 torr.
(R=0.08 L-atm /K-mol).