A mixture contains 1 mole of volatile liquid A(P°A = 100 mm Hg) and 3 moles of volatile liquid B(P°B = 80 mm Hg). If the solution behaves ideally, the total vapour pressure of the distillate is

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Prashant Kotian · Accepted Answer

Correct answer: B. The mole fraction of A in distillate, º ' A A A A total 1 100 X .P 5 4 X Y 1 3 P 17 100 80 4 4         Now, V.P. of distillate, ' º ' º A A B B P X .P X .P   5 12 100 80

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