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Mass Transfer

Mass Transfer
Cox chart is useful in the design of

Dryer
Evaporator
Crystalliser
Distillation column

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Mass Transfer
Prandtl number for water at 20°C is about

150
7
70
0.7

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Mass Transfer
With increase in the concentration of the adsorbate, the integral heat of adsorption

May increase or decrease ; depends on the type of adsorbate
Remains unchanged
Increases
Decreases

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Mass Transfer
If f = moles of vapour present per mole of feed, then the slope of feed line is

(1 - f)/f
- f/(1 - f)
- (f - 1)/f
- 1/f

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

Foaming
All of these
Weeping & dumping
Entrainment

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Mass Transfer
Humidity chart is useful for the solution of problems concerning condensation, vaporisation and air conditioning. At a given dry bulb temperature, value of humidity obtained from the humidity chart directly, is in terms of __________ humidity.

Relative
Percentage
None of these
Molal

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