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)

F/(FG.a)

(G.a)/FG

L/(FG.G)

FG/(G.a)

F/(FG.a)

(G.a)/FG

L/(FG.G)

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Mass Transfer
HETP is numerically equal to HTU, only when the operating line

Is far from the equilibrium line

And equilibrium lines are parallel

Lies below the equilibrium line

Lies above the equilibrium line

Is far from the equilibrium line

And equilibrium lines are parallel

Lies below the equilibrium line

Lies above the equilibrium line

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Mass Transfer
Which of the following psychrometric processes is followed by water vapour laden unsaturated air, when it is passed through solid or liquid adsorbent?

Heating and dehumidification at almost constant wet bulb temperature

Dehumidification with dry bulb temperature remaining constant

Cooling and dehumidification

None of these

Heating and dehumidification at almost constant wet bulb temperature

Dehumidification with dry bulb temperature remaining constant

Cooling and dehumidification

None of these

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Mass Transfer
The amount of steam required per unit quantity of distillate in case of steam distillation will be reduced by

Neither A nor B

Lowering the total pressure

Raising the temperature

Both A & B

Neither A nor B

Lowering the total pressure

Raising the temperature

Both A & B

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Mass Transfer
__________ is used as an 'entrainer' for the separation of acetic acid-water mixture by distillation.

Hexane

Butyl acetate

Furfural

Benzol

Hexane

Butyl acetate

Furfural

Benzol

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Mass Transfer
Only small amount of evaporation of water produces large cooling effects because of its

Low viscosity

Large latent heat

None of these

Small latent heat

Low viscosity

Large latent heat

None of these

Small latent heat

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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 HETP is numerically equal to HTU, only when the operating line

Mass Transfer Which of the following psychrometric processes is followed by water vapour laden unsaturated air, when it is passed through solid or liquid adsorbent?

Mass Transfer The amount of steam required per unit quantity of distillate in case of steam distillation will be reduced by

Mass Transfer __________ is used as an 'entrainer' for the separation of acetic acid-water mixture by distillation.

Mass Transfer Only small amount of evaporation of water produces large cooling effects because of its

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
HETP is numerically equal to HTU, only when the operating line

Mass Transfer
Which of the following psychrometric processes is followed by water vapour laden unsaturated air, when it is passed through solid or liquid adsorbent?

Mass Transfer
The amount of steam required per unit quantity of distillate in case of steam distillation will be reduced by

Mass Transfer
__________ is used as an 'entrainer' for the separation of acetic acid-water mixture by distillation.

Mass Transfer
Only small amount of evaporation of water produces large cooling effects because of its