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Mass Transfer

Mass Transfer
Rayleigh's equation applies to __________ distillation.

Differential
Steam
Continuous
Flash

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Mass Transfer
Tower diameter may be decreased by

Using higher reflux ratio
Use of increased tray spacing
Increasing the vapour flow rate
Increasing the liquid flow rate

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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
Degree of turbulence
Interfacial area
Chemical properties

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Mass Transfer
Dry bulb temperature of the gas is __________ the wet bulb temperature.

Less than
None of these
Equal to
More than

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Mass Transfer
Sticky material can be dried in a __________ dryer.

Rotary
None of these
Fluidised bed
Tray

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Mass Transfer
Stefan's law describes the mass transfer by

Diffusion
Neither A nor B
Bulk flow
Both A & B

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