For the gas absorption, the height of a transfer unit, based on the gas phase is given by (G: superficial molar gas velocity, L: superficial molar liquid velocity, FG:mass transfer co-efficient, mols/m² , a: in-terfacial area per unit volume of tower)

Mass Transfer
For the gas absorption, the height of a transfer unit, based on the gas phase is given by (G: superficial molar gas velocity, L: superficial molar liquid velocity, FG:mass transfer co-efficient, mols/m² , a: in-terfacial area per unit volume of tower)

FG/(G.a)

L/(FG.G)

F/(FG.a)

(G.a)/FG

FG/(G.a)

L/(FG.G)

F/(FG.a)

(G.a)/FG

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Mass Transfer
Azeotropism for ethyl alcohol-water system disappears by

No means

Decreasing pressure

Increasing temperature

Increasing pressure

No means

Decreasing pressure

Increasing temperature

Increasing pressure

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Mass Transfer
Dew point of an air-water vapor mixture

All of the listed here

Corresponding to any point on the humidity chart is obtained by projecting a line through this point parallel to the temperature axis and to the saturation curve

At constant humidity & total pressure is fixed

Decreases with decrease in pressure

All of the listed here

Corresponding to any point on the humidity chart is obtained by projecting a line through this point parallel to the temperature axis and to the saturation curve

At constant humidity & total pressure is fixed

Decreases with decrease in pressure

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Mass Transfer
Stacked packing compared to dumped packing

Both A & B

Gives higher pressure drop

Provides poorer contact between the fluids

Gives lower pressure drop

Both A & B

Gives higher pressure drop

Provides poorer contact between the fluids

Gives lower pressure drop

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Mass Transfer
Danckwerts developed the __________ theory.

Film

Surface renewal

None of these

Penetration

Film

Surface renewal

None of these

Penetration

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Mass Transfer
Gaseous diffusion co-efficient increases with increase in the

None of the listed here

Both Pressure & Temperature

Temperature

Pressure

None of the listed here

Both Pressure & Temperature

Temperature

Pressure

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Mass Transfer

Mass Transfer For the gas absorption, the height of a transfer unit, based on the gas phase is given by (G: superficial molar gas velocity, L: superficial molar liquid velocity, FG:mass transfer co-efficient, mols/m² , a: in-terfacial area per unit volume of tower)

Mass Transfer Azeotropism for ethyl alcohol-water system disappears by

Mass Transfer Dew point of an air-water vapor mixture

Mass Transfer Stacked packing compared to dumped packing

Mass Transfer Danckwerts developed the __________ theory.

Mass Transfer Gaseous diffusion co-efficient increases with increase in the

Mass Transfer
For the gas absorption, the height of a transfer unit, based on the gas phase is given by (G: superficial molar gas velocity, L: superficial molar liquid velocity, FG:mass transfer co-efficient, mols/m² , a: in-terfacial area per unit volume of tower)

Mass Transfer
Azeotropism for ethyl alcohol-water system disappears by

Mass Transfer
Dew point of an air-water vapor mixture

Mass Transfer
Stacked packing compared to dumped packing

Mass Transfer
Danckwerts developed the __________ theory.

Mass Transfer
Gaseous diffusion co-efficient increases with increase in the