Mass Transfer

Penetration theory relates the average mass transfer co-efficient (K) with diffusivity D. as____________________?

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Penetration theory relates the average mass transfer co-efficient (K) with diffusivity D. as____________________?

A. K ∝D
B. K ∝√D
C. K ∝D1.5
D. K ∝D2

CHEMICAL ENGINEERING | Mass Transfer

Experiments were conducted to determine the flux of a species A in a stagnant medium across a gas-liquid interface. The overall mass transfer co-efficient based on the liquid side for dilute systems for the above was estimated to be 4 x 10-3 kg mole/m2.s. The equilibrium data for the system is given as y = 2x. The flux across the interface (in kg mole/m2 .s) for bulk concentrations of A in gas phase and liquid phase as y = 0.4 and x = 0.01 respectively is

Question: Experiments were conducted to determine the flux of a species A in a stagnant medium across a gas-liquid interface. The overall mass transfer co-efficient based on the liquid side for dilute systems for the above was estimated to be 4 x 10-3 kg mole/m2.s. The equilibrium data for the system is given as y = 2x. The flux across the interface (in kg mole/m2 .s) for bulk concentrations of A in gas phase and liquid phase as y = 0.4 and x = 0.01 respectively is
[A].

5.6 x 10-4
[B].
8.5 x 10-4
[C].
5.6 x 10-3
[D].
8.5 x 10-3

Answer: Option B

Explanation:

No answer description available for this question.

Read More Experiments were conducted to determine the flux of a species A in a stagnant medium across a gas-liquid interface. The overall mass transfer co-efficient based on the liquid side for dilute systems for the above was estimated to be 4 x 10-3 kg mole/m2.s. The equilibrium data for the system is given as y = 2x. The flux across the interface (in kg mole/m2 .s) for bulk concentrations of A in gas phase and liquid phase as y = 0.4 and x = 0.01 respectively is
Mass Transfer

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A. Inverse
B. Exponential
C. Linear
D. Logarithmic

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Mass Transfer

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With increase in solvent rate, the number of transfer units, NtoG, for a fixed degree of absorption from a fixed amount of gas________________?

A. Increases
B. Decreases
C. Decreases linearly
D. Remain unaffected

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Mass Transfer

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A. Degree of dispersion of one fluid in the other
B. Interfacial surface exposed between the phases
C. Both A. & B.
D. None of these

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When an unsaturated air-water mixture is heated at constant pressure, then ____________________ ?

A. The partial pressure of water vapour increases
B. The specific humidity decreases
C. The relative humidity increases
D. The relative humidity decreases

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Mass Transfer

One mole feed of a binary mixture of a given composition is flash vaporised at a fixed P and T. If Raoult’s law is obeyed, then changing the feed composition would effect ?

One mole feed of a binary mixture of a given composition is flash vaporised at a fixed P and T. If Raoult’s law is obeyed, then changing the feed composition would effect ?

A. The product composition but not the fraction vaporised
B. The product composition as well as the fraction vaporised
C. The fraction vaporised but not the product composition
D. Neither the product composition nor the fraction vaporised

Read More One mole feed of a binary mixture of a given composition is flash vaporised at a fixed P and T. If Raoult’s law is obeyed, then changing the feed composition would effect ?