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Mass Transfer

Mass Transfer
NSc/NPr is called the

Sherwood number
Psychrometric ratio
Lewis number
Stantan number

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Mass Transfer
COâ‚‚ can be absorbed by

Alumina
Cold Ca(OH)â‚‚
Heated charcoal
Hot cupric oxide

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

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

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Mass Transfer
Milk is dried usually in a __________ dryer.

Freeze
Rotary
Tray
Spray

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Mass Transfer
In distillation column design, the McCabe-Thiele procedure is inadequate and a Ponchan-Savarit procedure is needed, when

A total condenser is used
The latent heat of vaporisation of the more and less volatile components are greatly different
An azeotrope forms
Saturated feed is not used

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

Foaming
All of these
Entrainment
Weeping & dumping

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