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Mass Transfer

Mass Transfer
The value of Lewis number (Le = Sc/Pr) for air-water vapour system is around

3.97
600
1
0.24

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Mass Transfer
Freundlich equation applies to the adsorption of solute from

None of these
Dilute solutions, over a small concentration range
Gaseous solutions at high pressure
Concentrated solutions

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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
LG/m
L/mG

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Mass Transfer
The equipment used in the extraction of highly corrosive radio active liquids is

Pulse column
Baffle tower
Spray column
Mixer settler

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Mass Transfer
Berl saddle made of carbon cannot be used for

Alkalis
SO₂
H₂SO₄
Oxidising atmosphere

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Mass Transfer
The film penetration model of mass transfer was enunciated by

Stefan
Fick
Gilliland
Toor and Marchello

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