Chemical Engineering > GATE 2017 > Stripping
In a countercurrent stripping operation using pure steam, the mole ratio of a solute in the liquid stream is reduced from 0.25 to 0.05. The liquid feed flowrate, on a solute-free basis, is 3 mol/s. The equilibrium line for the system is given in the figure below. The MINIMUM flowrate of pure steam for this process, rounded to 1 decimal place, is
Correct : 4.0
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