Project ForgeMass Transfer
Mass Transfer Operations
GATE 2016
Medium
A McCabe-Thiele distillation design targets xD=0.9. The q-line intersects the equilibrium curve at (0.5, 0.7). The minimum reflux ratio, rounded to 1 decimal place, is
1(± 0.05 accepted)
Explanation
Rmin/(Rmin+1)=(0.9−0.7)/(0.9−0.5)=0.5 ⟹ Rmin=1.0.
Source: GATE CH 2016 (2016)
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