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Mass Transfer

Mass Transfer
All moisture in a non-hygroscopic material is the __________ moisture.

Equilibrium
Unbound
Bound
Free

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Mass Transfer
The ratio of Murphree plate efficiency to point efficiency is 1 in a __________ flow model.

Plug
None of the listed here
Perfectly mixed
Both plug & perfectly mixed

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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
With decrease in the throughput (compared with the design capacity) for a bubble cap distillation column, its efficiency

Decreases
Remains same
May increase or decrease ; depends on individual design
Increases

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Mass Transfer
Flooding results in

Good contact between the fluids
Low tray efficiency
High tray efficiency
High gas velocity

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Mass Transfer
Bound moisture is that liquid which exerts an equilibrium vapor pressure __________ that of the pure liquid at the given temperature.

Equal to
Less than
Either A or B; depends on the solid
More than

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