Explore topic-wise MCQs in Mass Transfer.

This section includes 4 Mcqs, each offering curated multiple-choice questions to sharpen your Mass Transfer knowledge and support exam preparation. Choose a topic below to get started.

1.

In sulphuric acid plants dry air is used for burning of sulphur. Air is dried in contact with concentrated Sulphuric acid. Moisture diffuses through a layer of air, reaches the surface and gets absorbed in it. Here air is said to be non-diffusing were as moisture is diffusing. Which of the following statements are correct?

A. Moisture has a source and a sink whereas dry air has a source but no sink
B. Moisture as well as dry air have a sink
C. Moisture has a source but no sink whereas dry air has a source as well as sink
D. Moisture as well as dry sir have no sink
Answer» B. Moisture as well as dry air have a sink
Discussion
2.

The value of a ratio of N flux of A to the total N flux for a steady state equimolar counter diffusion is

A. 0
B. Infinity
C. 1
D. None of the mentioned
Answer» C. 1
Discussion
3.

For a steady state equimolar counter diffusion of A and B. The N flux of A is ________

A. N flux of A
B. N flux of A
C. N flux of B
D. N flux of B
Answer» D. N flux of B
Discussion
4.

A mixture undergoing multicomponent diffusion is analyzed through the Maxwell-Stefan approach. With regard to this approach which among the following statements are incorrect? The difference in the partial pressure of the Component A over a small distance z (AB)is proportional to

A. The molar concentration at the two points
B. Length of the diffusion path
C. Velocity at the point A
D. Difference in the velocities at point A and B
Answer» D. Difference in the velocities at point A and B
Discussion