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Mass Transfer

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

Adsorption
Evaporation
Sublimation
Dehydration

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Mass Transfer
The value of NA/(NA + NB), for steady state equimolal counter diffusion of two gases 'A' and 'B' is

1
2
0.5
∞

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Mass Transfer
For a single component absorber, the operating line is straight only when plotted in term of __________ units.

None of these
Mole ratio
Mole fraction
Partial pressure

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Mass Transfer
Design calculation for multiple component distillation is done by

Tray to tray calculations
Enthalpy concentration method
Mccabe-Thiele method
Ponchon-Savarit method

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Mass Transfer
Minimum possible diameter of a packed coloumn is decided mainly by the

Liquid density
Gas viscosity
Flooding
Liquid hold up

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Mass Transfer
For contacting a highly soluble gas with a liquid

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

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