Mass Transfer
In a distillation column, with increase in the reflux ratio, the heat removed in the cooler

Increases
Remains unaffected
And the heat required in reboiler decreases
Decreases

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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)
Reboiler load is the same in both the cases but condenser 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

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Mass Transfer
Blowdown in a cooling tower

Means discarding a small fraction of circulating water to prevent and limit the concentration of salt and impurities
Is undesirable
All of these
Increases the scale forming tendencies of water

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