Mass Transfer
Chemisorption compared to physical absorption has

Increased utilisation of stagnant zones of the liquid phase
None of these
Lower adsorption rate
Lower capacity of the solvent for the solute gas

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Mass Transfer
Plate efficiency

Increases due to weeping and dumping of liquid
Increases due to liquid entrainment
Increases due to foaming
Is a function of the mass transfer between liquid and vapour

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Mass Transfer
A coalescer in a mixer-settler liquid-liquid extraction coloumn

Helps in increasing the settling rate of the bubbles
Helps in increasing the bubble size entering the settler
All of these
Comprises of thin bed of substances of extended surface having high porosity

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