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Mass Transfer

Mass Transfer
Stefan's law describes the mass transfer by

Both A & B
Neither A nor B
Bulk flow
Diffusion

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Mass Transfer
A natural draft cooling tower is filled with wooden grids, which covers about __________ percent of the tower height.

90-100
44119
30-40
70-80

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Mass Transfer
Positive deviation from Raoult's law means a mixture whose total pressure is

None of these
Less than that computed for ideality
Less than the sum of the vapour pressure of the components
Greater than that computed for ideality

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Mass Transfer
For the same feed, feed quality and separation (in a distillation column), with the increase of total pressure, the number of ideal plates will

Data insufficient, can't be predicted
Increase
Remain same
Decrease

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Mass Transfer
Langmuir equation is associated with

Steam distillation
Multicomponent absorption
Adsorption
Leaching

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Mass Transfer
Which of the following parameters remains constant during chemical dehumidifica-tion?

None of these
Wet bulb temperature
Partial pressure of vapour
Dry bulb temperature

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