Liquid A and B form an ideal solution. The boiling point of solution is `72^(@)` C, when the external pressure is 0.6 bar. If then solution contains 200 moles of liquid A, then moles of liquid B is :
`[Given : P_(A)^(@)=0.4 "bar" "and" P_(B)^(@)=1.0 "bar" "at" 72^(@)C]`

Two liquid A & B form an ideal solution. What is the vapour pressure of solution containing 2 moles of A and 3 moles at B at 300K? [Given: At 300K, Vapour pr. Of pure liquid A ("P"_("A")^(@)) =100 torr, Vapour pr. Of pure liquid B ("P"_("B")^(@)) = 300 torr]

20 moles of liquid A are mixed with 20 moles of liquid B to form an ideal binary solution. Calculate moles of A in liquid state when half of the solution has vaporized : ( Given : P_(A)^(@)=100 " torr", P_(B)^(@)=121 " torr" )

Liquid A and B form an ideal solution. At 25^(@)C . 5 moles of vapours of liquid 'A' and 10 moles of vapour of liquid B are taken in a cylinder piston arrangement and a pressure of 0.6 bar is maintained. At 25^(@)C , P_(A)^(@)=0.5 bar , P_(B)^(@) =1.0 bar. The only correct statement about the system is :

Two liquids A and B form an ideal solution. What is the vapour pressure of solution containing 2 moles of A and 3 moles of B at 300 K? [Given : At 300 K, vapour pressure of pure liquid A (p _A^0) = 100 torr and vapour pressure of pure liquid B (p _B^0) = 300 torr]

A and B form ideal solution, at 50^(@)C,P_(A^(0) is half P_(B)^(0) . The solution containing 0.2 mole of A and 0.8 mole of B has a normal boiling point of 50^(@)C . Calculate P_(A)^(0) and P_(B)^(0) at 50^(@)C .

The vapour pressure of a liquid solution containing A and B is 99 torr. Calculate mole % of B in vapour phase. (Given : P_A^0 = 100 torr , P_B^0 = 80 torr)

Two liquids A and B form an ideal solution. The ratio of vapour pressures of pure liquids A and B are 3: 5. If the mole fraction of A in the liquid solution at equilibrium with vapours is 0.4, then the mole-fraction of B in the liquid is

The vapour pressure of a pure liquid A is 70 torr at 27^(@)C It forms and ideal solution with another liquid B. The mole fraction of B is 0.2 and the total vapour pressure of the solution is 84 torr at 27^@ C .the vapour pressure of pure liquid B at . the vapur pressure of pure liquid B at 27^(@)C is _____.