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Mass Transfer

Mass Transfer
CO₂ can be absorbed by

Heated charcoal
Alumina
Hot cupric oxide
Cold Ca(OH)₂

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Mass Transfer
Which of the following remains constant during evaporative cooling process with recirculated water supply?

None of these
Relative humidity
Wet bulb temperature
Partial pressure of vapour

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Mass Transfer
Percentage saturation is __________ the relative saturation.

Always greater than
None of these
Always smaller than
Not related to

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Mass Transfer
Low viscosity absorbent is preferred for reasons of

Low pressure drop on pumping
Rapid absorption rates and good heat transfer characteristics
All of these
Improved flooding characteristics

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Mass Transfer
The relative saturation of an unsaturated mixture of gas and vapor is independent of the

Nature of the vapor
Temperature of the mixture
None of these
Composition of the mixture

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Mass Transfer
Leaching of coarse solid lumps is also termed as

Percolation
Decoction
Dissolution
Agitation and settling

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