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

10

5

100

1

10

5

100

1

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Mass Transfer
Desirable value of absorption factor in an absorber is

0.5

1

> 1

< 1

0.5

1

> 1

< 1

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Mass Transfer
Which of the following adsorbant is used in the refinning of sugar?

Bone charcoal

Wood charcoal

Silica gel

Activated clay

Bone charcoal

Wood charcoal

Silica gel

Activated clay

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Mass Transfer
Pick out the system with maximum boiling azeotrope at 1 atm.

None of these

Ethyl alcohol-water

Acetone chloroform

Benzene-ethyl alcohol

None of these

Ethyl alcohol-water

Acetone chloroform

Benzene-ethyl alcohol

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Mass Transfer
Entrainer used in azeotropic distillation should

Have high viscosity to provide high tray efficiency

Have high latent heat of vaporisation

Form a low boiling azeotrope with one of the constituents of the mixture

Form a new azeotrope of low relative volatility with one of the constituents of the mixture

Have high viscosity to provide high tray efficiency

Have high latent heat of vaporisation

Form a low boiling azeotrope with one of the constituents of the mixture

Form a new azeotrope of low relative volatility with one of the constituents of the mixture

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Mass Transfer
The relative volatility of a binary mixture at constant temperature __________ the total pressure.

Increases with increase in

None of these

Decreases with increase in

Is independent of

Increases with increase in

None of these

Decreases with increase in

Is independent of

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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 Desirable value of absorption factor in an absorber is

Mass Transfer Which of the following adsorbant is used in the refinning of sugar?

Mass Transfer Pick out the system with maximum boiling azeotrope at 1 atm.

Mass Transfer Entrainer used in azeotropic distillation should

Mass Transfer The relative volatility of a binary mixture at constant temperature __________ the total pressure.

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
Desirable value of absorption factor in an absorber is

Mass Transfer
Which of the following adsorbant is used in the refinning of sugar?

Mass Transfer
Pick out the system with maximum boiling azeotrope at 1 atm.

Mass Transfer
Entrainer used in azeotropic distillation should

Mass Transfer
The relative volatility of a binary mixture at constant temperature __________ the total pressure.