Diffusion in Solids,Liquids and Gases MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Diffusion in Solids,Liquids and Gases, 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 Diffusion in Solids,Liquids and Gases 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 Diffusion in Solids,Liquids and Gases mcq questions that explore various aspects of Diffusion in Solids,Liquids and Gases problems. Each MCQ is crafted to challenge your understanding of Diffusion in Solids,Liquids and Gases 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 Diffusion in Solids,Liquids and Gases MCQs are your pathway to success in mastering this essential Mass Transfer topic.

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Diffusion in Solids,Liquids and Gases MCQs | Page 1 of 8

Q1.
Find the operation where diffusion of solids not occurs
Discuss
Answer: (d).Distillation
Q2.
Find the diffusivity through slab if N flux of A 4 mol/sq.m sec, concentration difference is 2mol/cu.m and distance is 3 m.
Discuss
Answer: (c).6 sq.m/s
Q3.
Find the activated diffusivity of carbon if energy of activation is 6 kJ; the value of constant diffusivity is 2.5 sq.m/sec. (Hint: the value of exponential of (-6/RT) is 2.55)
Discuss
Answer: (a).6.375 sq.m/s
Discuss
Answer: (b).Temperature dependency
Q5.
If the two gases are separated by a polymer membrane, the extent of diffusion depends on _______ law.
Discuss
Answer: (a).Hendy
Q6.
For permanent gases diffusivity the order is _________ sq.m/s
Discuss
Answer: (d).10⁻¹⁰
Q7.
The solute movement of fluid on solids are __________
Discuss
Answer: (b).Hydrodynamic
Q8.
If the pore of the solid is inaccessible to external fluids then it is known as dead end.
Discuss
Answer: (b).False
Q9.
Macroporic surrounding of microscopic pellets powders of different magnitude in size is _______
Discuss
Answer: (b).Bi-disperse
Q10.
Find the permeability if diffusivity is 2 units and solubility coefficient is 5 units assume all are in SI units.
Discuss
Answer: (a).10 units
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