The feed to fractionating column is changed from saturated vapour to saturated liquid. If the separation and reflux ratio remains unchanged, the number of ideal stages will

Mass Transfer
The feed to fractionating column is changed from saturated vapour to saturated liquid. If the separation and reflux ratio remains unchanged, the number of ideal stages will

Increase

Decrease

Depend on saturated boiling point; may increase or decrease

Remains same

Increase

Decrease

Depend on saturated boiling point; may increase or decrease

Remains same

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Mass Transfer
Diffusivity in concentrated solutions differs from that in dilute solutions, because of the changes in

Viscosity with concentration

Neither A nor B

Both A & B

Degree of ideality of the solution

Viscosity with concentration

Neither A nor B

Both A & B

Degree of ideality of the solution

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Mass Transfer
Dry bulb temperature of unsaturated air is more than its __________ temperature.

Dew point

Neither A nor B

Both A & B

Wet bulb

Dew point

Neither A nor B

Both A & B

Wet bulb

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Mass Transfer
The operation involved when the soluble material is largely on the surface of an insoluble solid and is merely washed off by the solvent is called

Elutriation or elution

Percolation

Decoction

None of these

Elutriation or elution

Percolation

Decoction

None of these

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Mass Transfer
The fixed cost of a distillation column at minimum reflux ratio is

Minimum

Optimum

None of these

Infinite

Minimum

Optimum

None of these

Infinite

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Mass Transfer
The most common packing used in industrial operations is __________ rings.

Raschig

Single spiral

Lessing

Cross-partition

Raschig

Single spiral

Lessing

Cross-partition

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Mass Transfer

Mass Transfer The feed to fractionating column is changed from saturated vapour to saturated liquid. If the separation and reflux ratio remains unchanged, the number of ideal stages will

Mass Transfer Diffusivity in concentrated solutions differs from that in dilute solutions, because of the changes in

Mass Transfer Dry bulb temperature of unsaturated air is more than its __________ temperature.

Mass Transfer The operation involved when the soluble material is largely on the surface of an insoluble solid and is merely washed off by the solvent is called

Mass Transfer The fixed cost of a distillation column at minimum reflux ratio is

Mass Transfer The most common packing used in industrial operations is __________ rings.

Mass Transfer
The feed to fractionating column is changed from saturated vapour to saturated liquid. If the separation and reflux ratio remains unchanged, the number of ideal stages will

Mass Transfer
Diffusivity in concentrated solutions differs from that in dilute solutions, because of the changes in

Mass Transfer
Dry bulb temperature of unsaturated air is more than its __________ temperature.

Mass Transfer
The operation involved when the soluble material is largely on the surface of an insoluble solid and is merely washed off by the solvent is called

Mass Transfer
The fixed cost of a distillation column at minimum reflux ratio is

Mass Transfer
The most common packing used in industrial operations is __________ rings.