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Mass Transfer

Mass Transfer
Leaching rate is independent of the

Particle size
None of the listed here
Agitation
Temperature

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Mass Transfer
If G = insoluble gas in gas stream and L = non-volatile solvent in liquid stream, then the slope of the operating line for the absorber is

Always < 1
None of these
L/G
G/L

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Mass Transfer
Extraction of pencillin employs a __________ extraction coloumn.

None of these
Plate
Packed
Centrifugal

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Mass Transfer
Percentage saturation is __________ the relative saturation.

None of these
Not related to
Always greater than
Always smaller than

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

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

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Mass Transfer
In a single stage extraction process, 10 kg of pure solvent S (containing no solute A) is mixed with 30 kg of feed F containing A at a mass fraction xf = 0.2. The mixture splits into an extract phase E and a raf-finate phase R containing A at xB = 0.5 and xR = 0.05 respectively. The total mass of the extract phase is (in Kg)

6.89
8.89
10
8.25

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