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

ANSWER DOWNLOAD EXAMIANS APP

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

More than

Either A or B; depends on the solid

Less than

Equal to

More than

Either A or B; depends on the solid

Less than

Equal to

ANSWER DOWNLOAD EXAMIANS APP

Mass Transfer
As the reflux ratio decreases, the

None of these

Number of plates increases

Column diameter increases

Separation becomes more efficient

None of these

Number of plates increases

Column diameter increases

Separation becomes more efficient

ANSWER DOWNLOAD EXAMIANS APP

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

ANSWER DOWNLOAD EXAMIANS APP

Mass Transfer
McCabe-Thiele method

Can use any type of units

Is more accurate than Ponchan-Savarit method

Uses weight fractions to express liquid and vapour composition

Uses molal units for material and energy balance

Can use any type of units

Is more accurate than Ponchan-Savarit method

Uses weight fractions to express liquid and vapour composition

Uses molal units for material and energy balance

ANSWER DOWNLOAD EXAMIANS APP

Mass Transfer
Mass transfer co-efficient (K) and diffusivity (D) are related according to film theory as

K ∝ D1.5

K ∝ √D

K ∝ D

K ∝ D2

K ∝ D1.5

K ∝ √D

K ∝ D

K ∝ D2

ANSWER DOWNLOAD EXAMIANS APP

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

Mass Transfer As the reflux ratio decreases, the

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 McCabe-Thiele method

Mass Transfer Mass transfer co-efficient (K) and diffusivity (D) are related according to film theory as

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

Mass Transfer
As the reflux ratio decreases, the

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
McCabe-Thiele method

Mass Transfer
Mass transfer co-efficient (K) and diffusivity (D) are related according to film theory as