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Mass Transfer

Mass Transfer
Tea percolation employs

Liquid-liquid extraction
Absorption
None of these
Leaching

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Mass Transfer
The main reason for dividing a tall packed tower into series of small towers is to

Avoid channeling
Reduce liquid hold up
Minimise the overall pressure drop
Avoid flooding

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

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

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Mass Transfer
At the boiling point of the liquid at the prevailing pressure, the saturated absolute humidity becomes

?
None of these
1

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Mass Transfer
The most economical range of absorption factor is

2.5 to 3
5 to 10
2 to 2.5
1.25 to 2

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Mass Transfer
Chemisorption compared to physical absorption has

Lower capacity of the solvent for the solute gas
None of these
Lower adsorption rate
Increased utilisation of stagnant zones of the liquid phase

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