42.
'Absorption with chemical reaction' is involved in the removal of

45.
If f = moles of vapour present per mole of feed, then the slope of feed line is (Mcabe-Thiele method)

48.
In a gas-liquid absorption coloumn, for obtaining the maximum absorption efficiency

50.
In case of binary distillation, increasing the reflux ratio above optimum does not result in the increase of

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