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Mass Transfer

Mass Transfer
Which of the following is the most commonly used leaching solvent in vegetable oil industry?

Furfurol
Phenol
Liquid SO₂
Hexane

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Mass Transfer
The surface renewal frequency in Danckwerts model of mass transfer is given by (KL: mass transfer co-efficient)

KL².DA
KL/DA²
√(KL².DA)
KL²/DA

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Mass Transfer
The reason for preferring packed towers over plate towers in distillation practice is that the packed tower operation gives

Low pressure drop and low hold up
High pressure drop and high hold up
Low pressure drop and high hold up
High pressure drop and low hold up

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Mass Transfer
In distillation where q is defined as the moles of liquid flow in the stripping section per mole of feed introduced, for saturated liquid feed

q = 1
q > 1
q = 0
q < 1

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

Steam
High pressure
Extractive
Low pressure

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Mass Transfer
Corresponding to Nusselt number in heat transfer, the dimensionless group in mass transfer is the __________ number.

Schmidt
Peclet
Sherwood
Stanton

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