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MASS TRANSFER

Mass Transfer
Flash distillation is suitable for separating the constituents of a binary system, which

Have very close boiling points
Form minimum boiling azeotrope
Form constant boiling azeotrope
Have very wide boiling points

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Mass Transfer
Weeping in a distillation column

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

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Mass Transfer
Steady state equimolal counter diffusion is encountered in

Absorption of NH₃ from air by water
All of these
Separation of a binary mixture by distillation
All liquid-liquid diffusion systems

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Mass Transfer
Steady state equimolal counter diffusion occurs in case of

Absorption
Leaching
Binary phase distillation
Liquid-liquid extraction

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Mass Transfer
In liquid-liquid extraction, the number of phases at plait point is

3
4
2
1

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