Project ForgeMass Transfer
Mass Transfer Operations
GATE 2016
Hard
At 30°C, acetone adsorption on activated carbon (Langmuir isotherm): 0.1 kg/kg at 10mmHg, 0.4 kg/kg at 100mmHg. The amount adsorbed at 50mmHg, 30°C is
- A0.23
- B0.25
- 0.30
- D0.35
Explanation
Fitting q=qmax·b·P/(1+bP) to both points gives qmax=0.6, b=0.02. At P=50: q=0.6×0.02×50/(1+1)=0.6/2=0.30.
Source: GATE CH 2016 (2016)
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