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Mass Transfer

Mass Transfer
Free flowing granular materials can be best dried in a __________ drier.

Freeze
Rotary
Drun
Cylinder

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Mass Transfer
Unsaturated air (with dry bulb and wet bulb temperatures being 45°C and 25°C respectively) is passed through a water spray chamber maintained at 23°C. The air will be cooled and

Humidified at constant wet bulb temperature
None of these
Dehumidified
Humidified with wet bulb temperature decreasing

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Mass Transfer
If mass diffusivity in a mixture is equal to the thermal diffusivity, then the Lewis number is

< 1
> 1
1

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Mass Transfer
Degree of freedom for leaching and solvent extraction process is

3
2
1

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Mass Transfer
Raoult's law is applicable to the

Ideal solutions
Real solutions
Non-ideal gases
Mixture of water and alcohol

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Mass Transfer
Smoke is an example of

Liquid dispersed in gas
Solid dispersed in liquid
Solid dispersed in gas
Gas dispersed in liquid

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