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Mass Transfer

Mass Transfer
Tea percolation employs

None of these
Absorption
Liquid-liquid extraction
Leaching

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Mass Transfer
The individual mass transfer co-efficients (moles/m² . s) for absorption of a solute from a gas mixture into a liquid solvent are, KL = 4.5 and KG = 1.5. The slope of the equilibrium line is 3. Which of the following resistance (s) is (are) controlling ?

Interfacial
Both liquid and gas side
Liquid side
Gas side

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Mass Transfer
Design calculation for multiple component distillation is done by

Ponchon-Savarit method
Mccabe-Thiele method
Enthalpy concentration method
Tray to tray calculations

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Mass Transfer
Stacked packing compared to dumped packing

Gives lower pressure drop
Provides poorer contact between the fluids
Both A & B
Gives higher pressure drop

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Mass Transfer
In a binary system, separation is very efficient, when the relative volatility is

< 1
1
0.5
> 1

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Mass Transfer
Dried finished product sampled from various parts of a __________ dryer exhibits non-uniformity in the moisture content.

Freeze
Tray
Rotary
None of these

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