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Mass Transfer

Mass Transfer
Pore size of the molecular seive 5A is __________ mm.

0.05
50
5
0.5

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Mass Transfer
In case of physical adsorption, the difference between heat of adsorption and heat of normal condensation is

Equal to the heat of wetting
Called integral heat of adsorption
Zero
Equal to the heat of formation of surface compound

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Mass Transfer
H₂S present in naphtha reformed gas is removed by absorbing with

Vacuum gas oil
K₂CO₃
Ethanolamine
HCl

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Mass Transfer
The process employing desorption of the absorbed solute by a solvent is called

Sublimation
Reverse osmosis
Osmosis
Elution

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Mass Transfer
Occurrence of 'case hardening' during drying of a high moisture solid cake __________ the drying rate.

Increases
Exponentially increases
Decreases
Does not affect

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Mass Transfer
Rose oil is extracted from rose leaves using __________ distillation.

Extractive
Low pressure
Steam
High pressure

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