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Mass Transfer

Mass Transfer
Tea percolation employs

None of these
Absorption
Liquid-liquid extraction
Leaching

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Mass Transfer
Which of the following unit operations makes use of Thiele-Geddes equation?

Liquid-liquid extraction
Multicomponent distillation
Multicomponent absorption with chemical reaction
Solid-liquid extraction

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Mass Transfer
The commonly used solvent in supercritical extraction is

Methyl ethyl ketone
Water
Carbon dioxide
Carbon tetrachloride

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Mass Transfer
During constant rate drying period, vaporisation rate per unit drying surface area

Does not change with time
Increases with time
Decreases with time
Does not affect the moisture content of the wet solid

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Mass Transfer
In distillation, overhead product contains

Two components
Any number of components
Only one component
Only saturated liquid

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Mass Transfer
If f is defined as above, then which of the following applies to a feed at dew point?

F = 1
F < 1
0 < f < 1
F > 1

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