Q. At 25$°$ C the vapour pressure of benzene and toluene are 93.4 torr and 26.9 torr respectively. A solution is made by mixing 35 gm of benzene and 65 gm toluene. What applied pressure in torr, will this solution boil at ​25$°$ C.
Q. Benzene and Toluene form ideal solution over entire range of composition. The vapour pressure of pure benzene and toluene are 50.71 mm Hg and 32.06 mm Hg respectively. Calculate the mole fraction of benzene in vapour phase, if 80 gm of benzene mixed with 100 gm of toluene.