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Mass Transfer

Mass Transfer
Molality is defined as the number of gm moles of solute per __________ of solvent.

Gm
Litre
m³
Kg

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Mass Transfer
The cooling effect in a cooling tower can be speeded up by

Reducing the humidity of the air
All of the listed here
Reducing the barometric pressure
Increasing the air velocity and area of exposed wet surface

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Mass Transfer
At constant pressure, with increase of temperature, the dew point will

Increase/decrease ; depends on the temperature
Decrease
Remain unchanged
Increase

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Mass Transfer
Surface renewal model of mass transfer was enunciated by

Stefan
Fick
Danckwerts
Toor and Marchello

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Mass Transfer
A binary mixture of benzene and cyclohexane is separated by

Flash vaporisation
Solvent extraction
Extractive distillation
Ordinary distillation

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Mass Transfer
At what percentage (by volume) of alcohol composition, it forms an azeotrope with water?

90
91.5
99
95

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