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Mass Transfer

Mass Transfer
Humid volume, at a given temperature is a/an __________ function of humidity.

Logarithmic
Inverse
Exponential
Linear

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Mass Transfer
Boiling point diagram is

A plot of temperature vs. vapour composition
Affected by pressure
A plot of temperature vs. liquid composition
Not affected by pressure

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Mass Transfer
Chemisorption (chemical adsorption) is

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

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Mass Transfer
Perforated plate towers are unique for solvent extraction because, they provide

Repeated coalescence & redispersion of the drop phase
Better contact of the phase
None of these
Higher contact area

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Mass Transfer
Air at a particular humidity is heated in a furnace. The new dew point

Remain unchanged
Decreases
Depends on the extent of heating
Increases

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Mass Transfer
Use of packed towers for distillation is generally limited to the

Vacuum distillation
Small sizes
High pressure operation
Multicomponent distillation

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