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Mass Transfer

Mass Transfer
According to Chilton-Colburn analogy for mass transfer, NSt.NSc2/3 is equal to

2f
1/f
F
F/2

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Mass Transfer
An azeotropic mixture is a __________ mixture.

Ternary
None of these
Binary
Constant boiling point

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

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

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

Freeze
Spray
Indirect tray
None of these

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Mass Transfer
If the amount of the steam used in steam distillation is increased, the temperature of distillation

Decreases
Increases
Remains unchanged
Depends on relative volatility

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Mass Transfer
For the same process conditions, the reflux ratio of an unlagged distillation column

None of these
Increases in summer
Decreases in winter
Increases in winter

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