Mass Transfer
Entrainer used in azeotropic distillation should

Have high latent heat of vaporisation
Form a new azeotrope of low relative volatility with one of the constituents of the mixture
Have high viscosity to provide high tray efficiency
Form a low boiling azeotrope with one of the constituents of the mixture

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Mass Transfer
In a distillation operation, what is the effect of the temperature of the reflux stream (given below) on the condenser and reboiler loads? Reflux conditions:(i) Reflux stream is completely liquid and is at its bubble point.(ii) Reflux stream is below its bubble point.

Condenser load is the same in both the cases but reboiler load is higher in case (ii)
Both condensor and reboiler loads are higher in case (ii) as compared to case (i)
Condenser and reboiler loads are the same in both the cases
Reboiler load is the same in both the cases but condenser load is higher in case (ii)

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