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Mass Transfer

Mass Transfer
Rayleigh's equation applies to __________ distillation.

Differential
Flash
Steam
Continuous

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Mass Transfer
The commonly used solvent in supercritical extraction is

Methyl ethyl ketone
Carbon tetrachloride
Water
Carbon dioxide

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Mass Transfer
Stage efficiency in a leaching process depends on the

Time of contact between the solid and the solution
Both A & B
Rate of diffusion of the solute through the solid and into the liquid
Vapour pressure of the solution

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Mass Transfer
Can a cooling tower cool water below the wet bulb temperature of inlet air?

Yes
Yes ; but height of cooling tower will be prohibitively high
No
Yes ; but the air flow rate should be excessively high

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Mass Transfer
__________ columns are used for liquid dispersion in a continuous gas phase.

Packed
Pulse
Sieve plate
Bubble cap

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Mass Transfer
Which of the following quantities need not be fixed before starting the design of a co-current absorber?

Flow rate of entering liquid
None of the listed here
Heat gain or loss
Flow rate of gas

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