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Mass Transfer

Mass Transfer
Ion exchange process is similar to

Adsorption
Extraction
Leaching
Absorption

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Mass Transfer
For the gas absorption, the height of a transfer unit, based on the gas phase is given by (G: superficial molar gas velocity, L: superficial molar liquid velocity, FG:mass transfer co-efficient, mols/m² , a: in-terfacial area per unit volume of tower)

FG/(G.a)
F/(FG.a)
(G.a)/FG
L/(FG.G)

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Mass Transfer
Large scale drying of sugar is done in a __________ dryer.

Tray
Spouted bed
Truck
Rotary

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Mass Transfer
Leaching of sugar from sugar beets is done by

Dilute H₂SO₄
Lime water
Hexane
Hot water

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Mass Transfer
At what value of reflux ratio, number of theoretical plates in a distillation column is minimum?

1
∞
< 1

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Mass Transfer
At __________ reflux, theoretical number of plates in a distillation coloumn is calculated using Fenske-Underwood equation.

Minimum
Total
Maximum permissible
Operating

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