The mole fraction of component A in vapour phase is x1 and mole fraction of component A in liquid mixture is x2(P0A= vapour pressure of pure A, P0B= vapour pressure of pure B). Then total vapour pressure of the liquid mixture is:-
A
P0Ax2x1
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B
P0Ax1x2
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C
P0Bx1x2
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D
P0Bx2x1
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