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Mass Transfer

Mass Transfer
According to Poiseuille's law, the permeability for gas flow through a capillary is proportional to (where, μ = gas viscosity)

μ²
1/μ
μ
√μ

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Mass Transfer
Liquid diffusivity is of the order of __________ cm² /second.

0.1
0.01
> 1
10-5 to 10-6

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Mass Transfer
With increase in temperature, the leaching rate increases due to

Increased diffusivity
Decreased liquid viscosity
Both A & B
Neither A nor B

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Mass Transfer
Perforated plate towers are unique for solvent extraction because, they provide

None of these
Better contact of the phase
Higher contact area
Repeated coalescence & redispersion of the drop phase

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Mass Transfer
During drying operation, it is easier to remove the __________ moisture.

Unbound
Bound
Equilibrium
Critical

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Mass Transfer
Ion exchange process is similar to

Extraction
Adsorption
Leaching
Absorption

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