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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)

√μ
μ
μ²
1/μ

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Mass Transfer
In a binary distillation column, if the feed contains 40 mole % vapour, the q line will have a slope of

-1.5
-0.6
1.5
0.6

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Mass Transfer
The process employing desorption of the absorbed solute by a solvent is called

Sublimation
Reverse osmosis
Osmosis
Elution

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Mass Transfer
The slope of the operating line for a single component co-current absorber when plotted in terms of mole ratio units is

+ve
-ve
∞

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Mass Transfer
In continuous distillation, the internal reflux ratio (Ri) and the external reflux ratio (Re) are related as

Ri = Re/(1 - Re)
Ri = (1 - Re)/Re
Ri = Re
Ri = Re/(1 + Re)

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Mass Transfer
The equipment frequently used for adiabatic humidification-cooling operation with recirculating liquid is

Spray chamber
Natural draft cooling tower
None of these
Induced draft cooling tower

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