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Mass Transfer

Mass Transfer
Leaching of coffee from coffee beans is done by

Lime water
Dilute H₂SO₄ (hot)
Hot water
Hexane

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Mass Transfer
__________ columns are used for liquid dispersion in a continuous gas phase.

Packed
Bubble cap
Sieve plate
Pulse

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Mass Transfer
If moisture content of solid on dry basis is X, then the same on wet basis is

X/(X - 1)
X/(X + 1)
(X - 1)/X
(X + 1)/X

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Mass Transfer
In the desorption of highly soluble gas from the liquid, the main resistance will be in the __________ phase.

Gas
Neither A nor B
Liquid
Both A & B

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Mass Transfer
Pressure drop through plate tower as compared to that through packed tower, for the same duty will be

Equal
Less
Either A or B; depends on the packing height
More

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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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