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Mass Transfer

Mass Transfer
The binary diffusivity in gases and liquids vary respectively as

T3/2 and √T
√T and T3/2
T3/2 and T
T and T3/2

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Mass Transfer
When the temperature and humidity of air is low, we usually use __________ draft cooling tower.

Induced
Forced
Natural
None of these

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Mass Transfer
In an absorption coloumn, the flooding velocity for random packing is __________ that for stacked/regular packing.

Either A, or B ; depends on the type of packing
Equal to
Greater than
Smaller than

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Mass Transfer
Which of the following is not a continuous drier?

Drum drier
Tray drier
Tunnel drier
Spray drier

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

8
12
18
2

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Mass Transfer
Degree of freedom for leaching and solvent extraction process is

1
2
3

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