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Mass Transfer

Mass Transfer
Pore size of the molecular seive 5A is __________ mm.

0.5
5
0.05
50

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Mass Transfer
Fractional solvent extraction

None of the listed here
Employs only one solvent
Employs two solvents
Results in low interfacial tension

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Mass Transfer
Swenson-Walker crystalliser is a __________ unit

Batch
Cooling (adiabatic)-cum-evaporation
Continuous
Semi-batch

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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)

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

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Mass Transfer
At 750°K and 1 atm, the approximate value of Schmidt number for air is

0.1
1
10
0.01

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Mass Transfer
Langmuir equation is associated with

Leaching
Multicomponent absorption
Steam distillation
Adsorption

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