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Mass Transfer

Mass Transfer
Milk is dried usually in a __________ dryer.

Freeze
Spray
Rotary
Tray

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Mass Transfer
In case of an ideal solution, the total vapor pressure varies __________ with the composition expressed as mole fraction,

None of these
Exponentially
Linearly
Inversely

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Mass Transfer
Selectivity of the solvent used in solvent extraction should be

1
> 1
< 1

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Mass Transfer
When the psychometric ratio is __________ then the adiabatic saturation temperature and wet bulb temperature becomes equal.

< 1
> 1
1
?

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Mass Transfer
In case of physical adsorption, the difference between heat of adsorption and heat of normal condensation is

Zero
Equal to the heat of formation of surface compound
Equal to the heat of wetting
Called integral heat of adsorption

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Mass Transfer
The vapour pressure exerted by the moisture contained in a wet solid depends upon the

Temperature
Nature of the solid
All of these
Nature of the moisture

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