Mass Transfer
The adiabatic saturation curve for a vapour-gas mixture is

Straight line
Slightly concave upward
Slightly concave downward
None of these

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Mass Transfer
McCabe-Thiele method

Can use any type of units
Uses weight fractions to express liquid and vapour composition
Is more accurate than Ponchan-Savarit method
Uses molal units for material and energy balance

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

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
All of these

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