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Mass Transfer

Mass Transfer
A good solvent used for absorption should not have very high

Viscosity
Vapor pressure
Freezing point
All of these

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Mass Transfer
Heat sensitive materials like certain pharmaceuticals and food stuffs can be dried in a/an __________ dryer.

Spray
None of these
Freeze
Indirect tray

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Mass Transfer
Steady state temperature reached by a small amount of liquid evaporating into a large amount of unsaturated vapour-gas mixture is called the __________ temperature.

Wet-bulb
Dew point
Adiabatic saturation
Dry-bulb

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Mass Transfer
Which of the following is not fixed by the process requirements, in the design of absorbers?

Composition of the entering liquid
None of these
Flow rate of the entering gas
Terminal concentrations of gas stream

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Mass Transfer
An azeotropic mixture is a __________ mixture.

None of these
Ternary
Binary
Constant boiling point

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Mass Transfer
In extractive distillation, solvent is

Present in overhead stream
Added to alter the relative volatility of the mixture
Of high volatility
Of high viscosity to give high tray efficiency

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