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Mass Transfer

Mass Transfer
__________ developed the film theory.

Higbie
Levenspeil
Fick
Ergun

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Mass Transfer
At what value of reflux ratio, number of theoretical plates in a distillation column is minimum?

< 1
1
∞

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Mass Transfer
The suitable evaporator for concentration of foaming liquids is a __________ evaporator.

Vacuum
Short tube
Long tube
Falling film

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

Relative humidity
Wet bulb temperature
Partial pressure of vapour
Both B and C

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Mass Transfer
Out of the following gas-liquid contacting devices, for a given set of operating conditions, gas pressure drop is the least in __________ tower.

Perforated tray
Bubble cap
Wetted wall
Packed

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Mass Transfer
Sodium bicarbonate is produced during soda ash manufacture using a __________ tower.

Packed
Plate
None of these
Baffle

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