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Mass Transfer

Mass Transfer
Leaching of coffee from coffee beans is done by

Hot water
Dilute H₂SO₄ (hot)
Hexane
Lime water

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Mass Transfer
Agitator is provided in a crystalliser for

Formation of nuclei
All of these
Avoiding deposition on cooler surfaces
Crystal growth

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Mass Transfer
Bound moisture is that liquid which exerts an equilibrium vapor pressure __________ that of the pure liquid at the given temperature.

More than
Less than
Either A or B; depends on the solid
Equal to

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Mass Transfer
Dorr thickener is an equipment used for

Classification
Sedimentation
Clarification
Leaching

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Mass Transfer
Steady state equimolal counter diffusion occurs in case of

Liquid-liquid extraction
Absorption
Binary phase distillation
Leaching

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Mass Transfer
The value of L/mG ratio for economical absorption operation ranges from

2.5 to 3.5
0.8 to 1.2
1.25 to 2.0
0.5 to 0.8

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