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Mass Transfer

Mass Transfer
Tea percolation employs

Leaching
None of these
Absorption
Liquid-liquid extraction

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Mass Transfer
Mass transfer co-efficient is defined as

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

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Mass Transfer
In a packed bed absorption column, the channelling will be noted by the

Increase in flow rate
Sharp rise in pressure drop
Sharp drop in pressure drop
None of these

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Mass Transfer
The vapour pressure exerted by the moisture contained in a wet solid depends upon the

Nature of the solid
All of these
Nature of the moisture
Temperature

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Mass Transfer
For achieving rapid drying rate in a spray dryer, the diameter of the particles in the feed should be in the range of __________ microns (1 mm = 1000 microns).

200-300
> 500
22190
43835

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

4
1
2
3

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