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Mass Transfer

Mass Transfer
Extraction of pencillin employs a __________ extraction coloumn.

Packed
Centrifugal
None of these
Plate

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Mass Transfer
Mass transfer co-efficient is directly proportional to DAB according to the __________ theory.

Penetration
Surface-renewal
Film
None of these

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Mass Transfer
Out of the following gas-liquid contacting devices, for a given set of operating conditions, gas pressure drop is the least in __________ tower.

Perforated tray
Bubble cap
Wetted wall
Packed

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Mass Transfer
According to Chilton-Colburn analogy for mass transfer, NSt.NSc2/3 is equal to

1/f
F/2
F
2f

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Mass Transfer
With increase in temperature, the mutual solubility of two liquids

Decreases
Remains unchanged
Decreases exponentially
Increases

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Mass Transfer
Percentage saturation is __________ the relative saturation.

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

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