An ideal solution has two components A and B.A is more volatile than B i.e., PA∘>PB∘and also PA∘>Ptotal . If XA and YAare mole fractions of components A in liquid and vapour phases, then:

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XA=YA

XA>YA

Data insufficient

answer is C.

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Detailed Solution

We know that YA=PA∘XAPtotal or YAXA=PA∘Ptotal ∵PA∘>Ptotnl so YAXA>1 or YA>XA

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