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)

F/(FG.a)

L/(FG.G)

FG/(G.a)

(G.a)/FG

F/(FG.a)

L/(FG.G)

FG/(G.a)

(G.a)/FG

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Mass Transfer
In a distillation operation, what is the effect of the temperature of the reflux stream (given below) on the condenser and reboiler loads? Reflux conditions:(i) Reflux stream is completely liquid and is at its bubble point.(ii) Reflux stream is below its bubble point.

Both condensor and reboiler loads are higher in case (ii) as compared to case (i)

Condenser load is the same in both the cases but reboiler load is higher in case (ii)

Condenser and reboiler loads are the same in both the cases

Reboiler load is the same in both the cases but condenser load is higher in case (ii)

Both condensor and reboiler loads are higher in case (ii) as compared to case (i)

Condenser load is the same in both the cases but reboiler load is higher in case (ii)

Condenser and reboiler loads are the same in both the cases

Reboiler load is the same in both the cases but condenser load is higher in case (ii)

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Mass Transfer
For the same system, if the same liquid used in an absorber is decreased, the tower height will

Decrease

Increase

Remain unaffected

Decrease or increase ; depends on the type of liquid

Decrease

Increase

Remain unaffected

Decrease or increase ; depends on the type of liquid

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Mass Transfer
As the reflux ratio, in a continuous counter-current extraction is increased, the number of stages

Decrease

Remain unchanged

Can either increase or decrease, depends on the system

Increase

Decrease

Remain unchanged

Can either increase or decrease, depends on the system

Increase

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Mass Transfer
Flooding in a vapor-liquid contacting equipment occurs in a tray, when the pressure drop through a tray is __________ the liquid head available in the downcomer.

More than

Very much less

Less than

Same as

More than

Very much less

Less than

Same as

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

Cost

Size

Durability

Porosity

Cost

Size

Durability

Porosity

ANSWER DOWNLOAD EXAMIANS APP

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 In a distillation operation, what is the effect of the temperature of the reflux stream (given below) on the condenser and reboiler loads? Reflux conditions:(i) Reflux stream is completely liquid and is at its bubble point.(ii) Reflux stream is below its bubble point.

Mass Transfer For the same system, if the same liquid used in an absorber is decreased, the tower height will

Mass Transfer As the reflux ratio, in a continuous counter-current extraction is increased, the number of stages

Mass Transfer Flooding in a vapor-liquid contacting equipment occurs in a tray, when the pressure drop through a tray is __________ the liquid head available in the downcomer.

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

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
In a distillation operation, what is the effect of the temperature of the reflux stream (given below) on the condenser and reboiler loads? Reflux conditions:(i) Reflux stream is completely liquid and is at its bubble point.(ii) Reflux stream is below its bubble point.

Mass Transfer
For the same system, if the same liquid used in an absorber is decreased, the tower height will

Mass Transfer
As the reflux ratio, in a continuous counter-current extraction is increased, the number of stages

Mass Transfer
Flooding in a vapor-liquid contacting equipment occurs in a tray, when the pressure drop through a tray is __________ the liquid head available in the downcomer.

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