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Mass Transfer

Mass Transfer
Molality is defined as the number of gm moles of solute per __________ of solvent.

m³
Gm
Kg
Litre

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Mass Transfer
In a packed tower, the value of HETP equals HTUOG, when the equilibrium and the operating lines are (where, HETP = height equivalant to a theoretical plate HTUOG = overall gas phase height of a transfer unit)

Neither A nor B
Parallel
Both A & B
Straight

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Mass Transfer
For achieving rapid drying rate in a spray dryer, the diameter of the particles in the feed should be in the range of __________ microns (1 mm = 1000 microns).

22190
200-300
> 500
43835

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Mass Transfer
The value of L/mG ratio for economical absorption operation ranges from

2.5 to 3.5
0.5 to 0.8
0.8 to 1.2
1.25 to 2.0

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Mass Transfer
__________ is concerned with the adsorption equilibria.

Freundlich equation
None of these
Fick's law
Gibb's equation

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Mass Transfer
The drying time between fixed moisture contents within the 'constant rate period' is proportional to (assuming that drying occurs from all surfaces of the solid) (where, T = thickness of the solid )

T3
T1.5
√T
T

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