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Mass Transfer

Mass Transfer
In liquid-liquid extraction, the number of phases at plait point is

3
4
1
2

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Mass Transfer
The mass diffusivity, the thermal diffusivity and the eddy momentum diffusivity are same for, NPr = NSc = __________

3
4
2
1

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Mass Transfer
Surface renewal model of mass transfer was enunciated by

Fick
Toor and Marchello
Danckwerts
Stefan

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Mass Transfer
A natural draft cooling tower is filled with wooden grids, which covers about __________ percent of the tower height.

30-40
90-100
44119
70-80

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Mass Transfer
Chemisorption (chemical adsorption) is

A reversible phenomenon
Same as "Van der Waals" adsorption
An irreversible phenomenon
Characterised by adsorption of heat

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Mass Transfer
Large scale drying of sugar is done in a __________ dryer.

Rotary
Spouted bed
Truck
Tray

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