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Mass Transfer

Mass Transfer
In paper industry, paper is dried in a __________ dryer.

Festoon
Tunnel
Conveyor
Heated cylinder

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Mass Transfer
The drying time between fixed moisture contents within the 'constant rate period' is proportional to (assuming that drying occurs from all surfaces of the solid) (where, T = thickness of the solid )

T
T3
√T
T1.5

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

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

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Mass Transfer
__________ column is used in gas absorption process.

Bubble cap
Seive/perforated tray
Wetted wall
Packed

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Mass Transfer
With increase in the concentration of the adsorbate, the integral heat of adsorption

Increases
Decreases
May increase or decrease ; depends on the type of adsorbate
Remains unchanged

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Mass Transfer
Plate efficiency in a distillation column is reduced due to the __________ of liquid.

Weeping & dumping
Foaming
All of these
Entrainment

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