Mass Transfer
The McCabe Δ L law states that the

Linear crystal growth rate depends on the degree of supersaturation
Molar heats of vaporisation of components are nearly equal
Linear crystal growth rate does not depend on the crystal size
Linear crystal growth rate depends on the crystal size

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Mass Transfer
Heat load in a cooling tower

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

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