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 1 of 12

Q1.
The ratio of a mass concentration of species A to the total mass density of the mixture is known as
Discuss
Answer: (d).Mass fraction
Q2.
For a binary mixture of species A and B, the mass average velocity is defined as
Discuss
Answer: (b).pₐ Vₐ + pᵦ Vᵦ/ p
Q3.
The ratio of number of moles of species A to the total number of moles of the mixture is known as
Discuss
Answer: (a).Mole fraction
Q4.
A binary mixture of oxygen and nitrogen with partial pressures in the ratio 0.21 and 0.79 is contained in a vessel at 300 K. If the total pressure of the mixture is 1 * 10⁵ N/m², find molar concentration of oxygen.
Discuss
Answer: (c).8.42 * 10⁻³ kg mol/m³
Q5.
For a binary mixture of species A and B, the molar average velocity is defined as
Discuss
Answer: (b).n ₐ V ₐ + nᵦ Vᵦ/n
Q6.
A binary mixture of oxygen and nitrogen with partial pressures in the ratio 0.21 and 0.79 is contained in a vessel at 300 K. If the total pressure of the mixture is 1 * 10⁵ N/m², find overall mass density.
Discuss
Answer: (d).1.156 kg/m³
Q7.
A binary mixture of oxygen and nitrogen with partial pressures in the ratio 0.21 and 0.79 is contained in a vessel at 300 K. If the total pressure of the mixture is 1 * 10⁵ N/m², find molar fraction of nitrogen
Discuss
Answer: (a).0.79
Q8.
A binary mixture of oxygen and nitrogen with partial pressures in the ratio 0.21 and 0.79 is contained in a vessel at 300 K. If the total pressure of the mixture is 1 * 10⁵ N/m², find mass fraction of oxygen
Discuss
Answer: (b).0.233
Q9.
A binary mixture of oxygen and nitrogen with partial pressures in the ratio 0.21 and 0.79 is contained in a vessel at 300 K. If the total pressure of the mixture is 1 * 10⁵ N/m², find the average molecular weight of the mixture
Discuss
Answer: (a).28.84
Q10.
In which of the following conditions mass transfer will occur spontaneously? C and z is concentration and distance respectively.
Discuss
Answer: (b).dC/dz<0
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