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The vapour pressure of two pure liquids A nd B that forms an ideal soln. is 300 and 800 torr. respectively at temperature T. A mixture of the vapours of A and B for which the mole fraction of A is 0.25 is slowly compressed at Temperatur T.Calculate:

1.The composition of the first drop of the condensate:-

a.8/17,9/17   b.4/13,7/13

2.The total pressure when this drop formed:-

a.475 torr .b.565 torr

3.The composition of the solution whose normal  boiling Point is T:

a.0.4,0.6      b.0.08,0.92

The pressure when only the last bubble of vapour remains.

a.  765 torr  c.675 torr

7 years ago


Answers : (1)


Dear student,

Use the formula,


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