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Mass Transfer

Mass Transfer
Rate of leaching increases with increasing

Size of the solid
Viscosity of solvent
Pressure
Temperature

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Mass Transfer
The efficiency of a plate column will be maximum, when the flow is ideal __________ the plate.

Both A & B
Across
Neither A nor B
Above

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Mass Transfer
Which of the following operations does not involve leaching?

Dissolving pharmaceutical products from bark or roots
Dissolving gold from ores
Removing nicotine from its water solution by kerosene
Dissolving sugar from the cells of the beet

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Mass Transfer
Calcium ammonium nitrate (a fertiliser) is dried in a __________ dryer.

Tray
Vacuum
Tunnel
Rotary

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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
At constant pressure, with increase of temperature, the dew point will

Remain unchanged
Increase/decrease ; depends on the temperature
Decrease
Increase

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