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Mass Transfer

Mass Transfer
For turbulent mass transfer in pipes, the Sherwood number depends on the Reynolds number as

Re0.83
Re0.33
Re0.53
Re

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Mass Transfer
Leaching of uranium ore and gold ore is done in

None of these
Centrifugal extractor
Bollman extractor
Pachuka tanks

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Mass Transfer
The relative volatility of a binary mixture at the azeotropic composition is

∞
> 1
1

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Mass Transfer
Chemisorption (chemical adsorption) is

A reversible phenomenon
An irreversible phenomenon
Characterised by adsorption of heat
Same as "Van der Waals" adsorption

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Mass Transfer
Humidification involves mass transfer between a pure liquid phase and a fixed gas, which is

Insoluble in the liquid
At a fixed temperature
Soluble in the liquid
Non-ideal in nature

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Mass Transfer
The percentage humidity is less than the relative humidity only at __________ percent humidity.

None of these
Both zero and hundred
Zero
Hundred

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