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Mass Transfer

Mass Transfer
Small dia distillation column can be a

Bubble cap
Sieve tray
Packed column
Any of these

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Mass Transfer
With increase in solvent rate, the number of transfer units, NtoG, for a fixed degree of absorption from a fixed amount of gas

Remains same
Decreases
Increases
Decreases linearly

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Mass Transfer
The mass transfer co-efficient for a solid sphere of radius 'a' dissolving in a large volume of quiescent liquid, in which D is the diffusivity of solute, is

D/2a
D/a
Proportional to √D
Dependent on the Reynolds number

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Mass Transfer
With increase in temperature, the rate of extraction in leaching (solid-liquid extraction system)

Increases Linearly
Decreases
Remains unaffected
Increases

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Mass Transfer
Smoke is an example of

Solid dispersed in gas
Solid dispersed in liquid
Liquid dispersed in gas
Gas dispersed in liquid

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Mass Transfer
Which of the following binary systems is an example of a maximum boiling azeotrope?

None of the listed here
Acetone-carbon disulphide
Water-ethyl alcohol
Water-hydrochloric acid

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