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Mass Transfer

Mass Transfer
__________ column is used in gas absorption process.

Packed
Seive/perforated tray
Wetted wall
Bubble cap

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Mass Transfer
Lewis number (Le) is

Sh x Pr
Sc x Pr
St x Sh
Pr x St

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Mass Transfer
Water-ethyl alcohal solution can be concentrated (in respect of alcohal concentration) by __________ distillation.

None of these
Vacuum
Atmospheric
High pressure

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Mass Transfer
Mass transfer rate between two fluid phases does not necessarily depend on the __________ of the two phases.

Physical properties
Chemical properties
Degree of turbulence
Interfacial area

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Mass Transfer
Operating velocity in a packed tower is usually __________ the flooding velocity.

More than
Twice
Half
Equal to

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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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