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Mass Transfer

Mass Transfer
Milk is dried usually in a __________ dryer.

Spray
Rotary
Freeze
Tray

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Mass Transfer
Wet bulb and dry bulb temperatures becomes identical at __________ percent saturation curve.

78
100
50
None of these

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Mass Transfer
The apex of an equilateral-triangular coordinate (in ternary liquid system) represents a/an

Binary mixture
Ternary mixture
Insoluble binary system
Pure component

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Mass Transfer
In liquid extraction, if the selectivity is unity, then

Separation of the constituents is the most effective
No separation will occur
Solvent flow rate should be very low
Amount of solvent required will be minimum

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Mass Transfer
Sides of equilateral-triangular co-ordinates (on which ternary liquid system is plotted) represent

A pure component
Partially miscible ternary system
A binary mixture
A ternary mixture

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Mass Transfer
The value of Lewis number (Le = Sc/Pr) for air-water vapour system is around

1
600
3.97
0.24

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