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Mass Transfer

Mass Transfer
Leaching of sugar from sugar beets is done by

Lime water
Dilute H₂SO₄
Hexane
Hot water

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Mass Transfer
Operating velocity in a packed tower is usually __________ the flooding velocity.

Twice
More than
Half
Equal to

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Mass Transfer
CO₂ can be absorbed by

Hot cupric oxide
Cold Ca(OH)₂
Heated charcoal
Alumina

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Mass Transfer
Mass transfer co-efficient is directly proportional to DAB according to the __________ theory.

Surface-renewal
None of these
Film
Penetration

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Mass Transfer
On addition of solute in the solvent, the __________ of the solution decreases.

Boiling point
Freezing point
Both B and C
Vapour pressure

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Mass Transfer
Low viscosity absorbent is preferred for reasons of

Rapid absorption rates and good heat transfer characteristics
Low pressure drop on pumping
All of these
Improved flooding characteristics

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