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Mass Transfer

Mass Transfer
The unit of volumetric diffusivity is

Cm²/sec
Cm²/seC₂
Cm/sec
Cm³/sec

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Mass Transfer
Heat in BTU necessary to increase the temperature of 1 lb of gas and its accompanying vapour by 1°F is called the

Latent heat
Sensible heat
Specific heat
Humid heat

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Mass Transfer
With increase in temperature, the leaching rate increases due to

Decreased liquid viscosity
Neither A nor B
Both A & B
Increased diffusivity

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Mass Transfer
Tea percolation employs

Liquid-liquid extraction
None of these
Absorption
Leaching

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Mass Transfer
Can the efficiency of a plate in the distillation tower be greater than 100%?

Yes
Normally not; but is possible if infinite number of plates are put
Never
Yes ; if the reflux ratio is maximum

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Mass Transfer
A minimum boiling azeotrope is exemplified by

Toluene-benzene
None of these
Water-isobutyl alcohol
Acetone-carbon disulphide

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