GATE CH 2025 CH Q57: Process Calculations and Thermodynamics

Components

and

form an azeotrope. The saturation vapour pressures of

and

at the boiling point are 87 kPa and 72.7 kPa, respectively. The azeotrope composition is ____ mol%

(rounded off to the nearest integer).

GIVEN:

where

and

are the liquid phase mole fraction and activity coefficient of component

, respectively.

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