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Mass Transfer

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

Freeze
Cylinder
Drun
Rotary

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Mass Transfer
Moisture content of a substance when at equilibrium with a given partial pressure of the vapour is called the __________ moisture.

Free
Equilibrium
Bound
Unbound

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Mass Transfer
With increase in temperature, the rate of extraction in leaching (solid-liquid extraction system)

Increases Linearly
Remains unaffected
Increases
Decreases

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Mass Transfer
With increase in solvent rate, the number of transfer units, NtoG, for a fixed degree of absorption from a fixed amount of gas

Decreases
Remains same
Increases
Decreases linearly

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Mass Transfer
Chemisorption (chemical adsorption) is

Characterised by adsorption of heat
A reversible phenomenon
Same as "Van der Waals" adsorption
An irreversible phenomenon

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Mass Transfer
Unsaturated air (with dry and wet bulb temperatures being 35 and 25°C respectively) is passed through water spray chamber maintained at 35°C. The air will be

Cooled
Both A & B
Dehumidified
Humidified

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