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Mass Transfer

Mass Transfer
Sand is dried in foundaries in a___drier.

Rotary
Fluidisedbed
Vacuum
Spray

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Mass Transfer
Pore size of the molecular seive 5A is __________ mm.

0.05
0.5
50
5

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Mass Transfer
During constant rate period, the rate of drying decreases with the

Decrease in air temperature
Both A & B
Neither A nor B
Increase in air humidity

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Mass Transfer
An alkaline solution is used to reduce the concentration of carbon dioxide in a stream from 10% to 0.1% by absorption with irreversible chemical reaction. The overall number of transfer units based on gas phase is

0.001
4.605
9.21
100

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

2
1
3

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Mass Transfer
At the boiling point of the liquid at the prevailing pressure, the saturated absolute humidity becomes

?
1
None of these

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