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Mass Transfer

Mass Transfer
Free flowing granular materials can be best dried in a __________ drier.

Drun
Rotary
Cylinder
Freeze

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

None of these
Natural
Forced
Induced

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Mass Transfer
The dew point of a saturated gas phase equals the __________ temperature.

Gas
Room
None of these
Wet bulb

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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
Decreases
Remains unchanged
Increases

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Mass Transfer
Chemisorption (chemical adsorption) is

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

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Mass Transfer
Heat sensitive materials like certain pharmaceuticals and food stuffs can be dried in a/an __________ dryer.

None of these
Indirect tray
Spray
Freeze

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