Mass Transfer
For a fixed number of ideal stages in a distillation column, as the reflux ratio is increased, the difference in composition between the top and bottom product streams

Increases
Decreases
Passes through a maximum
Remains unaffected

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Mass Transfer
In case of an absorber, the operating

Line can be either above or below the equilibrium curve
Velocity is more than the loading velocity
Line always lies above the equilibrium curve
Line always lies below the equilibrium curve

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