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Mass Transfer

Mass Transfer
During drying operation, it is easier to remove the __________ moisture.

Equilibrium
Bound
Critical
Unbound

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Mass Transfer
Most important factor to be considered in the selection of packings for absorbers is the __________ of packing.

Size
Porosity
Durability
Cost

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Mass Transfer
Flooding results in

Low tray efficiency
High gas velocity
Good contact between the fluids
High tray efficiency

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

Gas viscosity
Liquid density
Flooding
Liquid hold up

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Mass Transfer
Only small amount of evaporation of water produces large cooling effects because of its

None of these
Large latent heat
Small latent heat
Low viscosity

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Mass Transfer
The Kundsen diffusivity is proportional to (where, T = absolute temperature)

T
T²
T⁴
√T

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