At 60° C, vapour pressure of methanol and water are 84.562 kPa and 19 – McqOptions

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1.	At 60° C, vapour pressure of methanol and water are 84.562 kPa and 19.953 kPa respectively. An aqueous solution of methanol at 60° C exerts a pressure of 39.223 kPa; the liquid phase and vapour phase mole fractions of methanol are 0.1686 and 0.5714 respectively. Activity co-efficient of methanol is
A.	1.572
B.	1.9398
C.	3.389
D.	4.238
Answer» B. 1.9398

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