[" Jution over the entire range of composition.At temperature T.equimblas "],[" ind B has vinour pressure "45" Tort.At the same temperauter a new "],[" leffactions "19]

Liquids A and B form ideal solution over the entire range of composition. At temperature T, equimolar binary solution of liquids A and B has vapour pressure 45 torr. At the same temperature, a new solution of A and B having mole fractions x_(A) and x_(B) , respectively, has vapours pressure of 22.5 torr. The value of x_(A)//x_(B) in the new solution is ______. (Given that the vapour pressure of pure liquid A is 20 torr at temperature T).

Liquids A and B form ideal solution over the entire range of composition. At temperature T, equimolar binary solution of liquids A and B has vapour pressure 45 torr. At the same temperature, a new solution of A and B having mole fractions x_(A) and x_(B) , respectively, has vapours pressure of 22. torr. The value of x_(A)//x_(B) in the new solution is ______. (Given that the vapour pressure of pure liquid A is 20 torr at temperature T).

Benzene and toluene form an ideal solution over the entire range of composition. The vapour pressure of pure benzene and toluene at T(K) are 50mm Hg and 40 mm Hg respectively. What is the mole fraction of toluene in vapour phase when 117 g of benzene is mixed with 46g of toluene? (molar mass of benzene and toluene are 78 and 92 g mol^(-1) respectively).