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Mass Transfer

Mass Transfer
The absorption factor is defined as (where, L = liquid flow rate, G = gas flow rate and, m = slope of the equilibrium line)

ML/G
G/mL
L/mG
LG/m

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Mass Transfer
Diffusion in concentrated solutins differs from that in dilute solutions, because of the change in the __________ with the concentration of the solution.

Neither A nor B
Both A & B
Degree of ideality
Viscosity

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Mass Transfer
______ extractor uses centrifugal force for separating the two phases.

Treybal
Podbielniak
Schiebel
None of the listed here

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Mass Transfer
Deairation (removal of O₂) of water is done by

Rectification
Ion-exchange
Absorption
Adsorption

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Mass Transfer
For contacting a highly soluble gas with a liquid

None of the listed here
Spray the liquid on gas stream
Bubble the gas through liquid
Both of the options given here

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Mass Transfer
Which of the following is an undesirable property in a tower packing?

Large free cross-section
Large surface per unit volume
Low weight per unit volume
Large weight of liquid retained

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