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Mass Transfer

Mass Transfer
Extraction of pencillin employs a __________ extraction coloumn.

Packed
Centrifugal
Plate
None of these

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Mass Transfer
For the case of flow of air past a wet bulb thermometer (air water vapour system), the approximate value of Hâ‚‚/ky.Cz is around

0.6
0.72
1
0.24

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Mass Transfer
During drying of a solid, the critical moisture content increases with

Decreased drying rate
Increased thickness of the solid
Both B and C
Increased drying rate

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Mass Transfer
An azeotropic mixture is a __________ mixture.

Ternary
None of these
Constant boiling point
Binary

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Mass Transfer
Molecular diffusivity of a liquid

Is independent of temperature
May increase or decrease with temperature
Decreases with temperature
Increases with temperature

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Mass Transfer
Flooding in a column results due to

High pressure drop
Low pressure drop
High temperature
Low velocity of the liquid

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