6479Chemical EngineeringMedium
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________?
A1.9398
B1.572
C4.238
D3.389
Correct answer
B. 1.572
Explanation
The correct answer is 1.572.