Solutions

What is the composition of vapour which is in equillibrium at 30Â°C with a benzene - toulene

solution with mole fraction of benzene as 0.4?

PÂ°_b = 119 torr

PÂ°_t = 37 torr

1 Answers

is this d answer ??
benzene -- 0.682

toluene -- 0.318

V.P of benzene ---> 0.4 * 119 = 47.6

V.P of Toluene ---> 0.6* 37 = 22.2

so M.F of benzene = partial pressure of benzene / total pressure
= 47.6 / 69.8
= 0.682

isn't that simple too or am doing some mistake ???

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