For an ideal binary liquid solution with pAo>pBo. xA and yA represent the mole fraction of A in liquid phase and vapour phase respectively whereas xB and yB represents the mole fraction of B in liquid phase and vapour phase respectively. Therefore which of the following relation is correct?

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xA=yA

xA>yA

xAxB

xAxB>yAyB

answer is C.

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Detailed Solution

P'A=PA0 xA=psol × yAP'B=poxB=psol×yB∴YAYB=PAoPBo×XAXB Since pAo>pBo∴YAYB>XAXB

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