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Mass Transfer

Mass Transfer
Milk is dried usually in a __________ dryer.

Tray
Freeze
Spray
Rotary

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Mass Transfer
Positive deviation from Raoult's law means a mixture whose total pressure is

Greater than that computed for ideality
Less than that computed for ideality
None of these
Less than the sum of the vapour pressure of the components

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Mass Transfer
The mass diffusivity, the thermal diffusivity and the eddy momentum diffusivity are same for, NPr = NSc = __________

4
1
2
3

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Mass Transfer
For contacting a highly soluble gas with a liquid

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

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Mass Transfer
In liquid-liquid extraction, the number of phases at plait point is

3
4
1
2

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Mass Transfer
Which of the following operations does not involve leaching?

Dissolving pharmaceutical products from bark or roots
Dissolving gold from ores
Dissolving sugar from the cells of the beet
Removing nicotine from its water solution by kerosene

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