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Mass Transfer

Mass Transfer
According to Poiseuille's law, the permeability for gas flow through a capillary is proportional to (where, μ = gas viscosity)

1/μ
√μ
μ²
μ

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Mass Transfer
Mechanism of moisture removal in case of freeze drying of food stuff is by

Adsorption
Sublimation
Evaporation
Dehydration

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

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

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Mass Transfer
In triangular co-ordinates, the ternery composition point falls __________ of the triangle.

Inside
On the sides
In the corners
None of these

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Mass Transfer
Diameter of raschig rings used in packed tower in industry is normally around __________ inches.

2
12
18
8

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Mass Transfer
For which of the following unit operations, Lewis number is of significance?

Binary distillation
Humidification
Adsorption
Gas absorption

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