Mass Transfer
With increase in the concentration of the adsorbate, the integral heat of adsorption

Increases
Decreases
Remains unchanged
May increase or decrease ; depends on the type of adsorbate

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

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

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Mass Transfer
If a two phase system is in physical equilibrium; then it means that, the

Temperature of the liquid phase is equal to that of the vapor phase
Total pressure throughout the liquid phase is equal to that throughout the vapor phase
All of these
Escaping tendency of each component from the liquid phase to the vapor phase is exactly equal to that from vapor phase to liquid phase

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