Modes and Diffusion MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Modes and Diffusion, a fundamental topic in the field of Mass Transfer. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Modes and Diffusion MCQs are designed to help you grasp the core concepts and excel in solving problems.

In this section, you'll find a wide range of Modes and Diffusion mcq questions that explore various aspects of Modes and Diffusion problems. Each MCQ is crafted to challenge your understanding of Modes and Diffusion principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Mass Transfer tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Modes and Diffusion MCQs are your pathway to success in mastering this essential Mass Transfer topic.

Note: Each of the following question comes with multiple answer choices. Select the most appropriate option and test your understanding of Modes and Diffusion. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

So, are you ready to put your Modes and Diffusion knowledge to the test? Let's get started with our carefully curated MCQs!

Modes and Diffusion MCQs | Page 2 of 12

Q11.
Which among the following is always true for mass transfer to occur?
Discuss
Answer: (d).Difference in chemical potential
Q12.
A solution contains 0.3 moles of solute A, 0.2 moles of B and 0.5 moles of C. What will be the mole fraction of A in the mixture?
Discuss
Answer: (a).0.3
Q13.
A gas mixture containing 21% O₂ and 79% N₂ flows through a pipe of circular cross-section of diameter 2cm at atmospheric pressure. The velocity of O₂ is 0.04m/s and N₂ is 0.035m/s.

What is the value of molar average velocity (m/s) of the mixture?
Discuss
Answer: (a).0.036
Q14.
A gas mixture containing 21% O₂ and 79% N₂ flows through a pipe of circular cross-section of diameter 2cm at atmospheric pressure. The velocity of O₂ is 0.04m/s and N₂ is 0.035m/s.

What will be the value of mass average velocity (m/s)?
Discuss
Answer: (a).0.981
Q15.
A gas mixture containing 21% O₂ and 79% N₂ flows through a pipe of circular cross-section of diameter 2cm at atmospheric pressure. The velocity of O₂ is 0.04m/s and N₂ is 0.035m/s.

What is the value of Volume average velocity?
Discuss
Answer: (a).0.036
Q16.
In a gas mixture if molecular weights of all the species are equal than which one will be more, Mass average velocity or Molar average velocity?
Discuss
Answer: (c).Both will have the same value
Q17.
The velocity of various components of mixture(21% A, 78% B and 1% C) are:
Velocity is in the form: v=xi+yj+zk

Velocity of component A= (0.1, 0, 0)

Velocity of component B= (0, 0.1, 0)

Velocity of component B= (0, 0, 0.1)

Calculate the value of average molar velocity?
Discuss
Answer: (a).(0.021, 0.078, 0.01)
Q18.
The velocity of various components of mixture(21% A, 78% B and 1% C) are:
Velocity is in the form: v=xi+yj+zk

Velocity of component A= (0.1, 0, 0)

Velocity of component B= (0, 0.1, 0)

Velocity of component B= (0, 0, 0.1)

Calculate the value of mass average velocity?
Discuss
Answer: (a).(0.0235, 0.0764, 0.00007)
Q19.
For the calculation of Mass average velocity, which velocity of the molecule is used?
Discuss
Answer: (b).Mean Velocity
Q20.
Which among the following can be the unit of Flux?
Discuss
Answer: (a).Kg*m-2*s-1
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