Mass Transfer
__________ temperature is the steady state temperature attained by a small amount of liquid evaporating into a large quantity of unsaturated gas-vapor mixture.

Dry bulb
Wet bulb
None of these
Dew point

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Mass Transfer
Pick out the wrong statement pertaining to leaching.

Very high temperature is not needed for the leaching of sugar beet
Door classifier can be used for leaching of coarse solids
Fine solids can not be leached in a Pachuka tank
Vegetable seeds can be leached in either of Bollman extractor, Rotocel or Kennedy extractor

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Mass Transfer
When the solvent dissolves very little of solute, then

Solvent of low latent heat of vaporisation should be used
Solvent of low freezing point should be used
Very small quantity of solvent is required
Large quantity of solvent is required to extract the solute

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