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Mass Transfer

Mass Transfer
Free flowing granular materials can be best dried in a __________ drier.

Drun
Cylinder
Freeze
Rotary

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Mass Transfer
A mixture of 10% C₆H₆ vapour in air at 25°C and 750 mm Hg has a dew point of 20°C. Its dew point at 30°C and 700 mm Hg will be around __________ °C.

27.3
20
18.7
21.7

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Mass Transfer
Bound moisture is that liquid which exerts an equilibrium vapor pressure __________ that of the pure liquid at the given temperature.

Less than
Equal to
Either A or B; depends on the solid
More than

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Mass Transfer
Ammonia present in the coke oven gas is removed by washing with

Caustic solution
Dilute HCl
Dilute ammoniacal liquor
Ethanolamine

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Mass Transfer
Unit operation involved in the prilling of urea is

Drying
Crystallisation
Evaporation
Both B and C

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Mass Transfer
__________ extractor is used for the concentration of radioactive nuclear waste.

Pulsed column
Seive plate
Mixer-settler
None of the listed here

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