Mass Transfer
Heat load in a cooling tower

Is equal to the number of kg, of water circulated times the cooling range
Neither A nor B
Means the amount of heat thrown away (KCal/hr.) by the cooling tower
Both A & B

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Mass Transfer
When the solvent dissolves very little of solute, then

Solvent of low latent heat of vaporisation should be used
Very small quantity of solvent is required
Solvent of low freezing point should be used
Large quantity of solvent is required to extract the solute

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