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Consider an ideal vapour-liquid binary mixture, find the total pressure if the vapour pressure of A is 260 mmHg and the vapour pressure of B is 520 mmHg and the composition of A in mole fraction is 0.55.

Correct Answer: 377 mmHg
Total pressure = (vapour pressure of A * mole fraction) + vapour pressure of B*( 1- mole fraction) = 377 mmHg.

Check whether we get approximately 80% saturation if the total pressure and the partial pressure of the gas mixture is 760 mmHg and 260 mmHg. Also, the vapour pressure is 300 mmHg.

Find the vapour pressure of component A in an ideal mixture, if its liquid composition and the partial pressure is 0.65 and 260 mmHg.

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