The Reynolds number of the liquid was increased 100 fold for a laminar falling film used for gas-liquid contacting. Assuming penetrating theory is applicable, the fold increase in the mass transfer co-efficient (Kc) for the same sytem is

Mass Transfer
The Reynolds number of the liquid was increased 100 fold for a laminar falling film used for gas-liquid contacting. Assuming penetrating theory is applicable, the fold increase in the mass transfer co-efficient (Kc) for the same sytem is

5

1

10

100

5

1

10

100

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Mass Transfer
In a distillation column, with increase in the reflux ratio, the heat removed in the cooler

Remains unaffected

Decreases

Increases

And the heat required in reboiler decreases

Remains unaffected

Decreases

Increases

And the heat required in reboiler decreases

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Mass Transfer
Dew point of an air-water vapor mixture

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

All of the listed here

Decreases with decrease in pressure

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

All of the listed here

Decreases with decrease in pressure

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Mass Transfer
In case of steam distillation, the steam leaving the liquid is not completely saturated with distillate vapour, because

Temperature is less

Total pressure is less

Saturated steam is used for steam distillation

Mixing of steam with the material being vaporised is not so intimate as to result in equilibrium condition

Temperature is less

Total pressure is less

Saturated steam is used for steam distillation

Mixing of steam with the material being vaporised is not so intimate as to result in equilibrium condition

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Mass Transfer
Most important factor to be considered in the selection of packings for absorbers is the __________ of packing.

Size

Porosity

Durability

Cost

Size

Porosity

Durability

Cost

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Mass Transfer
Surface renewal model of mass transfer was enunciated by

Stefan

Toor and Marchello

Fick

Danckwerts

Stefan

Toor and Marchello

Fick

Danckwerts

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Mass Transfer

Mass Transfer The Reynolds number of the liquid was increased 100 fold for a laminar falling film used for gas-liquid contacting. Assuming penetrating theory is applicable, the fold increase in the mass transfer co-efficient (Kc) for the same sytem is

Mass Transfer In a distillation column, with increase in the reflux ratio, the heat removed in the cooler

Mass Transfer Dew point of an air-water vapor mixture

Mass Transfer In case of steam distillation, the steam leaving the liquid is not completely saturated with distillate vapour, because

Mass Transfer Most important factor to be considered in the selection of packings for absorbers is the __________ of packing.

Mass Transfer Surface renewal model of mass transfer was enunciated by

Mass Transfer
The Reynolds number of the liquid was increased 100 fold for a laminar falling film used for gas-liquid contacting. Assuming penetrating theory is applicable, the fold increase in the mass transfer co-efficient (Kc) for the same sytem is

Mass Transfer
In a distillation column, with increase in the reflux ratio, the heat removed in the cooler

Mass Transfer
Dew point of an air-water vapor mixture

Mass Transfer
In case of steam distillation, the steam leaving the liquid is not completely saturated with distillate vapour, because

Mass Transfer
Most important factor to be considered in the selection of packings for absorbers is the __________ of packing.

Mass Transfer
Surface renewal model of mass transfer was enunciated by