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

10

100

1

5

10

100

1

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Mass Transfer
Absorption factor is defined as (where, S₁ = slope of the operating line S₂ = slope of the equilibrium curve)

S₂/S₁

S₁ - S₂

S₁ x S₂

S₁/S₂

S₂/S₁

S₁ - S₂

S₁ x S₂

S₁/S₂

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Mass Transfer
The rate of solid-liquid extraction is limited by the

Phase change of the solute as it dissolves in the solvent

Diffusion of the solute from the solution in contact with the particle to the main bulk of the solution

All of these

Diffusion of the solute through the solvent in the pores to the outside of the particle

Phase change of the solute as it dissolves in the solvent

Diffusion of the solute from the solution in contact with the particle to the main bulk of the solution

All of these

Diffusion of the solute through the solvent in the pores to the outside of the particle

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Mass Transfer
The surface renewal frequency in Danckwerts model of mass transfer is given by (KL: mass transfer co-efficient)

KL²/DA

KL².DA

√(KL².DA)

KL/DA²

KL²/DA

KL².DA

√(KL².DA)

KL/DA²

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Mass Transfer
Priming in a distillation column

Reduces the overall pressure drop

Results from very low gas velocity

Is desirable from point efficiency consideration

Is characterised by the presence of foam throughout the space between trays

Reduces the overall pressure drop

Results from very low gas velocity

Is desirable from point efficiency consideration

Is characterised by the presence of foam throughout the space between trays

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Mass Transfer
Bound moisture is that liquid which exerts an equilibrium vapor pressure __________ that of the pure liquid at the given temperature.

More than

Equal to

Either A or B; depends on the solid

Less than

More than

Equal to

Either A or B; depends on the solid

Less than

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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 Absorption factor is defined as (where, S₁ = slope of the operating line S₂ = slope of the equilibrium curve)

Mass Transfer The rate of solid-liquid extraction is limited by the

Mass Transfer The surface renewal frequency in Danckwerts model of mass transfer is given by (KL: mass transfer co-efficient)

Mass Transfer Priming in a distillation column

Mass Transfer Bound moisture is that liquid which exerts an equilibrium vapor pressure __________ that of the pure liquid at the given temperature.

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
Absorption factor is defined as (where, S₁ = slope of the operating line S₂ = slope of the equilibrium curve)

Mass Transfer
The rate of solid-liquid extraction is limited by the

Mass Transfer
The surface renewal frequency in Danckwerts model of mass transfer is given by (KL: mass transfer co-efficient)

Mass Transfer
Priming in a distillation column

Mass Transfer
Bound moisture is that liquid which exerts an equilibrium vapor pressure __________ that of the pure liquid at the given temperature.