Project ForgeMass Transfer
Mass Transfer Operations
GATE 2017
Medium
Vapor entering a distillation tray has composition 0.47; the average leaving vapor composition is 0.53; the equilibrium vapor composition corresponding to the leaving liquid is 0.52. The Murphree efficiency based on the vapor phase, rounded to nearest integer, is
120 %(± 1 accepted)
Explanation
EMV=(yout−yin)/(y*−yin)=(0.53−0.47)/(0.52−0.47)=0.06/0.05=1.2=120%.
Source: GATE CH 2017 (2017)
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