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Mass Transfer

Mass Transfer
Leaching rate is independent of the

Particle size
None of the listed here
Temperature
Agitation

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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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Mass Transfer
Low viscosity absorbent is preferred for reasons of

Improved flooding characteristics
Low pressure drop on pumping
Rapid absorption rates and good heat transfer characteristics
All of these

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Mass Transfer
In the constant rate period of the rate of drying curve for batch drying,

Surface evaporation of unbound moisture occurs
None of these
Rate of drying decreases abruptly
Cracks develop on the surface of the solid

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Mass Transfer
In paper industry, paper is dried in a __________ dryer.

Festoon
Tunnel
Heated cylinder
Conveyor

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Mass Transfer
The most efficient cooling tower out of the following is

Natural draft
Forced draft
Atmospheric
Induced draft

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