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Mass Transfer

Mass Transfer
Diameter to height ratio for a rashig ring is

1
5
2
0.5

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Mass Transfer
Molarity is defined as the number of gm moles of solute per __________ of solvent.

Kg
Gm
Litre
c

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Mass Transfer
The reason for preferring packed towers over plate towers in distillation practice is that the packed tower operation gives

Low pressure drop and high hold up
Low pressure drop and low hold up
High pressure drop and high hold up
High pressure drop and low hold up

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Mass Transfer
Weeping in a distillation column

Results due to very low gas velocity
Provides large interfacial surface for mass transfer
Results due to very high gas velocity
Increases tray efficiency

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Mass Transfer
In distillation where q is defined as the moles of liquid flow in the stripping section per mole of feed introduced, for saturated liquid feed

q = 0
q > 1
q = 1
q < 1

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Mass Transfer
Components, having widely different boiling point in a binary mixture, can be separated using __________ distillation.

Extractive
Steam
Molecular
Simple

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