Two liquids having vapour pressure `P_1^0 and P_2^0` in pure state in the ratio of `2:1` are mixed in the molar ratio `1:2` The ratio of their moles in the vapour state would be

Two liquids X and Y form an ideal solution. The mixture has a vapour pressure of 400 mm at 300 K when mixed in the molar ratio 1:1. when mixed in the molar ratio of 1:2 at the same temperatre the vapour pressure of the mixture is 350 mm. The vapour pressure of the two pure liquids X and Y respectively are

Two miscible liquids A and B having vapour pressure in pure state P_(A)^(@) and P_(B)^(@) are mixed in mole fraction chi_(A) and chi_(B) to get a mixtue having total vapour vapour pressure of mixture P_(M) . Which of the following relations are correct?

Two liquids have the densities in the ratio of 1:2 and specific heats in the ratio of 2:1. The ratio of thermal capacity of equal volume of those liquids is

A mixture of two immiscible liquids A and B , having vapour pressure in pure state obeys the following relationship if chi_(A) and chi_(B) are mole fractions of A and B in vapour phase over the solution

Two liquids A and B have P_(A)^(@) and P_(B)^(@) in the ratio of 1:3 and the ratio of number of moles of A and B in liquid phase are 1:3 then mole fraction of A in vapour phase in equilibrium with the solution is equal to :

Equal moles of benzene and toluene are mixed. The vapour pressure of benzene and toluene in pure state are 700 and 600 mm Hg respectively. The mole fraction of benzene in vapour state is :-