Mass Transfer MCQ Questions & Answers

Section 1 Section 2 Section 3 Section 4 Section 5 Section 6 Section 7 Section 8 Section 9 Section 10

1.
Mass transfer rate between two fluid phases does not necessarily depend on the __________ of the two phases.

A. Chemical properties

B. Physical properties

C. Degree of turbulence

D. Interfacial area

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2.
For ethanol-water system, the lowering of distillate quality from 95% to 92% will cause __________ plate requirement.

A. No change in theoretical

B. Marginal decrease in the number of

C. Major decrease in the number of

D. None of these

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3.
The mass diffusivity, the thermal diffusivity and the eddy momentum diffusivity are same for, N_Pr = N_Sc = __________

A. 1

B. 0.5

C. 10

D. 0

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4.
The interfacial area per unit volume of dispersion, in a gas-liquid contactor, for fractional hold up of gas = 0.1 and gas bubble diameter = 0.5 mm is given by (in m²/m³)

A. 500

B. 1200

C. 900

D. 800

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5.
The ratio of Murphree plate efficiency to point efficiency is 1 in a __________ flow model.

A. Plug

B. Perfectly mixed

C. Both A & B

D. Neither A nor B

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Mass Transfer MCQ Questions & Answers | Chemical Engineering

1. Mass transfer rate between two fluid phases does not necessarily depend on the __________ of the two phases.

Answer & Solution

2. For ethanol-water system, the lowering of distillate quality from 95% to 92% will cause __________ plate requirement.

Answer & Solution

3. The mass diffusivity, the thermal diffusivity and the eddy momentum diffusivity are same for, NPr = NSc = __________

Answer & Solution

4. The interfacial area per unit volume of dispersion, in a gas-liquid contactor, for fractional hold up of gas = 0.1 and gas bubble diameter = 0.5 mm is given by (in m2/m3)

Answer & Solution

5. The ratio of Murphree plate efficiency to point efficiency is 1 in a __________ flow model.

Answer & Solution

Read More Section(Mass Transfer)

1.
Mass transfer rate between two fluid phases does not necessarily depend on the __________ of the two phases.

2.
For ethanol-water system, the lowering of distillate quality from 95% to 92% will cause __________ plate requirement.

3.
The mass diffusivity, the thermal diffusivity and the eddy momentum diffusivity are same for, N_Pr = N_Sc = __________

4.
The interfacial area per unit volume of dispersion, in a gas-liquid contactor, for fractional hold up of gas = 0.1 and gas bubble diameter = 0.5 mm is given by (in m²/m³)

5.
The ratio of Murphree plate efficiency to point efficiency is 1 in a __________ flow model.