Mass Transfer
The wetted wall tower is used to determine

Individual mass transfer co-efficient (M.T.C.) in gaseous system
The overall M.T.C. of the system
M.T.C. of liquid in liquid-gas system
M.T.C. of individual components in a liquid-liquid system

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Mass Transfer
The McCabe Δ L law states that the

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

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