Question

Two liquids X and Y have v.p. 500mm and 200 mm respectively.In an ideal solution of the two, Calculate the mole fraction of x at which the two liquids have equal partial pressures​

Answer 1

Answer:

For liquid A,PA=P∘AorPA=500mmXA

For liquid B,PB=P∘BXBorPB=P∘B(1−xA)=200mm(1−xA)

PA=PB

Therefore500xA=200(1−xA)orX