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Mass Transfer

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

4
3
1
2

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Mass Transfer
Capacity of a rotary dryer depends on its

R.p.m
Both Inclination with ground surface & R.p.m
Inclination with ground surface
None of the listed here

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Mass Transfer
Leaching of coffee from coffee beans is done by

Hexane
Dilute H₂SO₄ (hot)
Lime water
Hot water

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Mass Transfer
Pick out the correct relationship. (where, Ri = internal reflux ratio Ro = external reflux ratio. )

(1 - Ro) = Ro/Ri
(1 - Ri) = Ro/Ri
(1 + Ro) = Ro/Ri
(1 + Ri) = Ro/Ri

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Mass Transfer
Selectivity of the solvent used in solvent extraction should be

< 1
> 1
1

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Mass Transfer
On addition of solute in the solvent, the __________ of the solution decreases.

Freezing point
Both B and C
Boiling point
Vapour pressure

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