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Mass Transfer

Mass Transfer
Absorption factor, for a fixed degree of absorption from a fixed amount of gas should be

< 1
> 1
1
≤ 1

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Mass Transfer
Plate efficiency in a distillation column is reduced due to the __________ of liquid.

Weeping & dumping
Entrainment
All of these
Foaming

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Mass Transfer
The Schmidt number which is defined as, μ/ρ D, is the ratio of the

Thermal diffusivity to the mass diffusivity
None of these
Momentum diffusivity to the mass dif-fusivity
Momentum diffusivity to the thermal diffusivity

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Mass Transfer
Raoult's law is applicable to the

Non-ideal gases
Mixture of water and alcohol
Real solutions
Ideal solutions

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Mass Transfer
Drift in a cooling tower is

All of these
The water entrained by the circulating air
Dependent on the water lost by evaporation
Desirable

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Mass Transfer
According to Chilton-Colburn analogy for mass transfer, NSt.NSc2/3 is equal to

2f
F/2
F
1/f

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