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Mass Transfer

Mass Transfer
Leaching rate is independent of the

Agitation
Particle size
Temperature
None of the listed here

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Mass Transfer
The value of NA/(NA + NB), for steady state equimolal counter diffusion of two gases 'A' and 'B' is

1
2
∞
0.5

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Mass Transfer
The ratio of Murphree plate efficiency to point efficiency is 1 in a __________ flow model.

None of the listed here
Plug
Perfectly mixed
Both plug & perfectly mixed

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Mass Transfer
Drying operation under vacuum is carried out to

Increase drying temperature
Dry those materials which have very high unbound mositure content
Reduce drying temperature
Dry materials having high bound moisture content

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

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

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Mass Transfer
The equipment frequently used for adiabatic humidification-cooling operation with recirculating liquid is

Natural draft cooling tower
None of these
Induced draft cooling tower
Spray chamber

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