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Question: If ${{P}_{A}}$is the vapour pressure of a pure liquid A and the mole fraction of A in the mixture of two liquids A and B is X, the partial vapour pressure of A is



1) $(1-X){{P}_{A}}$
2) $X\,{{P}_{A}}$
3) $\frac{X}{(1-X)}{{P}_{A}}$
4) $\frac{(1-X)}{X}{{P}_{A}}$
Solution: Explanation: No Explanation
Ideal and Non-ideal solution Azeotropic mixture and Raoult’s law

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