Mass Transfer
Plate efficiency in a distillation column is reduced due to the __________ of liquid.

Entrainment
Weeping & dumping
All of these
Foaming

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Mass Transfer
Pick out the wrong statement. Raoult's law does not apply, when the

Component molecules are nonpolar
Attractive forces between like and unlike molecules in the solution are approximately equal
Chemical combination or molecular association between unlike molecules takes place in the formation of solution
Size of component molecules are not equal

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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.

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

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