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Mass Transfer

Mass Transfer
Molarity is defined as the number of gm moles of solute per __________ of solvent.

c
Kg
Litre
Gm

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Mass Transfer
Psychrometry deals with the properties of gas-vapor mixture. Humidity can be determined by the measurement of the __________ of a fibre.

None of the listed here
Thermal conductivity
Electrical resistance
Strength

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Mass Transfer
Leaching of sugar from sugar beets is done by

Hot water
Lime water
Dilute H₂SO₄
Hexane

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Mass Transfer
Which of the following is not a batch drier?

Truck drier
Fluidised bed drier
Vacuum shelf drier
Agitated pan drier

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Mass Transfer
In a single stage extraction process, 10 kg of pure solvent S (containing no solute A) is mixed with 30 kg of feed F containing A at a mass fraction xf = 0.2. The mixture splits into an extract phase E and a raf-finate phase R containing A at xB = 0.5 and xR = 0.05 respectively. The total mass of the extract phase is (in Kg)

8.89
10
6.89
8.25

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Mass Transfer
Which of the following plays an important role in problems of simultaneous heat and mass transfer?

Lewis number
Schmidt number
Prandtl number
Sherwood number

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