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Mass Transfer

Mass Transfer
The dew point of a saturated gas phase equals the __________ temperature.

Wet bulb
Room
Gas
None of these

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Mass Transfer
Mass transfer co-efficient (K) and diffusivity (D) are related according to film theory as

K ∝ D1.5
K ∝ D
K ∝ D2
K ∝ √D

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Mass Transfer
Make up water is required in a cooling tower to replace the water lost by

All of these
Blowdown and leakage
Evaporation
Drift

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Mass Transfer
Large scale drying of wheat is done in a __________ dryer.

Spouted bed
Vacuum rotary
Tray
Fluidised bed

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Mass Transfer
Which is the controlling factor for a drum drier?

Neither A nor B
Heat transfer
Diffusion
Both A & B

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Mass Transfer
For contacting a highly soluble gas with a liquid

Bubble the gas through liquid
Spray the liquid on gas stream
Both of the options given here
None of the listed here

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