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)

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)

10

8.89

8.25

6.89

10

8.89

8.25

6.89

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Mass Transfer
The mass transfer co-efficient for a solid sphere of radius 'a' dissolving in a large volume of quiescent liquid, in which D is the diffusivity of solute, is

Dependent on the Reynolds number

Proportional to √D

D/2a

D/a

Dependent on the Reynolds number

Proportional to √D

D/2a

D/a

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Mass Transfer
For absorbing a sparingly soluble gas in a liquid

Liquid side mass transfer co-efficient should be decreased

Gas side mass transfer co-efficient should be increased

Mass transfer co-efficient must be kept constant

Liquid side mass transfer co-efficient should be increased

Liquid side mass transfer co-efficient should be decreased

Gas side mass transfer co-efficient should be increased

Mass transfer co-efficient must be kept constant

Liquid side mass transfer co-efficient should be increased

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Mass Transfer
The dew point of an unsaturated gas-vapor mixture does not depend upon the __________ of the mixture.

Total pressure

All of these

Composition

Temperature

Total pressure

All of these

Composition

Temperature

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Mass Transfer
When the __________ the relative humidity of air decreases, despite an increase in the absolute humidity.

Pressure falls

Temperature falls

Pressure rises

Temperature rises

Pressure falls

Temperature falls

Pressure rises

Temperature rises

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Mass Transfer
Penetration model (theory) for mass transfer was enunciated by

Kissinevskii

Toor and Marchello

Higbie

Danckwerts

Kissinevskii

Toor and Marchello

Higbie

Danckwerts

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Mass Transfer

Mass Transfer The mass transfer co-efficient for a solid sphere of radius 'a' dissolving in a large volume of quiescent liquid, in which D is the diffusivity of solute, is

Mass Transfer For absorbing a sparingly soluble gas in a liquid

Mass Transfer The dew point of an unsaturated gas-vapor mixture does not depend upon the __________ of the mixture.

Mass Transfer When the __________ the relative humidity of air decreases, despite an increase in the absolute humidity.

Mass Transfer Penetration model (theory) for mass transfer was enunciated by

Mass Transfer
The mass transfer co-efficient for a solid sphere of radius 'a' dissolving in a large volume of quiescent liquid, in which D is the diffusivity of solute, is

Mass Transfer
For absorbing a sparingly soluble gas in a liquid

Mass Transfer
The dew point of an unsaturated gas-vapor mixture does not depend upon the __________ of the mixture.

Mass Transfer
When the __________ the relative humidity of air decreases, despite an increase in the absolute humidity.

Mass Transfer
Penetration model (theory) for mass transfer was enunciated by