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Mass Transfer

Mass Transfer
According to the film theory of mass transfer, the mass transfer co-efficient is proportional to (where, D = molecular diffusivity)

D2
1/D
D0.5
D

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Mass Transfer
__________ is used as an 'entrainer' for the separation of acetic acid-water mixture by distillation.

Hexane
Butyl acetate
Furfural
Benzol

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Mass Transfer
__________ is concerned with the adsorption equilibria.

Gibb's equation
Fick's law
None of these
Freundlich equation

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Mass Transfer
Capacity of a rotary dryer depends on its

Inclination with ground surface
Both Inclination with ground surface & R.p.m
None of the listed here
R.p.m

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

2
3
4
1

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Mass Transfer
Mass transfer co-efficient is defined as

Flux = Co-efficient/concentration difference
Co-efficient = Flux/concentration difference
None of the listed here
Flux=concentration difference/co-effi-cient

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