Chemical Engineering Exam  >  Chemical Engineering Tests  >  Mass Transfer  >  Test: Molecular Diffusion In Solids - Chemical Engineering MCQ

Test: Molecular Diffusion In Solids - Chemical Engineering MCQ


Test Description

10 Questions MCQ Test Mass Transfer - Test: Molecular Diffusion In Solids

Test: Molecular Diffusion In Solids for Chemical Engineering 2024 is part of Mass Transfer preparation. The Test: Molecular Diffusion In Solids questions and answers have been prepared according to the Chemical Engineering exam syllabus.The Test: Molecular Diffusion In Solids MCQs are made for Chemical Engineering 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Molecular Diffusion In Solids below.
Solutions of Test: Molecular Diffusion In Solids questions in English are available as part of our Mass Transfer for Chemical Engineering & Test: Molecular Diffusion In Solids solutions in Hindi for Mass Transfer course. Download more important topics, notes, lectures and mock test series for Chemical Engineering Exam by signing up for free. Attempt Test: Molecular Diffusion In Solids | 10 questions in 20 minutes | Mock test for Chemical Engineering preparation | Free important questions MCQ to study Mass Transfer for Chemical Engineering Exam | Download free PDF with solutions
Test: Molecular Diffusion In Solids - Question 1

Find the operation where diffusion of solids not occurs

Detailed Solution for Test: Molecular Diffusion In Solids - Question 1

Explanation: Distillation is the liquid-liquid operation where no diffusion on solid is possible.

Test: Molecular Diffusion In Solids - Question 2

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.

Detailed Solution for Test: Molecular Diffusion In Solids - Question 2

Explanation: N flux of A= D(AB)/z * concentration difference
D(AB) = 6 sq.m/sec.

1 Crore+ students have signed up on EduRev. Have you? Download the App
Test: Molecular Diffusion In Solids - Question 3

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)

Detailed Solution for Test: Molecular Diffusion In Solids - Question 3

Explanation: Activated diffusivity= constant diffusivity * exponential value
= 2.5 * 2.55
= 6.375.

Test: Molecular Diffusion In Solids - Question 4

 The term activated means _____________

Detailed Solution for Test: Molecular Diffusion In Solids - Question 4

Explanation: Activated represents the activation energy which depends on temperature.

Test: Molecular Diffusion In Solids - Question 5

If the two gases are separated by a polymer membrane, the extent of diffusion depends on _______ law.

Detailed Solution for Test: Molecular Diffusion In Solids - Question 5

Explanation: Concentration is directly proportional to pressure so Hendry law is applicable.

Test: Molecular Diffusion In Solids - Question 6

For permanent gases diffusivity the order is _________ sq.m/s 

Detailed Solution for Test: Molecular Diffusion In Solids - Question 6

Explanation: The gas can become permeable to certain substance if it is in an order of 10-10.

Test: Molecular Diffusion In Solids - Question 7

The solute movement of fluid on solids are __________

Detailed Solution for Test: Molecular Diffusion In Solids - Question 7

Explanation: Solute movement is due to pressure difference which is hydrodynamic.

Test: Molecular Diffusion In Solids - Question 8

If the pore of the solid is inaccessible to external fluids then it is known as dead end.

Detailed Solution for Test: Molecular Diffusion In Solids - Question 8

Explanation: If the pore of the solid is inaccessible to external fluids then it is known as isolate.

Test: Molecular Diffusion In Solids - Question 9

Macroporic surrounding of microscopic pellets powders of different magnitude in size is _______

Detailed Solution for Test: Molecular Diffusion In Solids - Question 9

Explanation: The double surrounding of these pellets is known as bi-disperse.

Test: Molecular Diffusion In Solids - Question 10

Find the permeability if diffusivity is 2 units and solubility coefficient is 5 units assume all are in SI units.

Detailed Solution for Test: Molecular Diffusion In Solids - Question 10

Explanation: Permeability = solubility co-efficient * diffusivity
= 2 * 5 =10 units.

29 videos|45 docs|44 tests
Information about Test: Molecular Diffusion In Solids Page
In this test you can find the Exam questions for Test: Molecular Diffusion In Solids solved & explained in the simplest way possible. Besides giving Questions and answers for Test: Molecular Diffusion In Solids, EduRev gives you an ample number of Online tests for practice
29 videos|45 docs|44 tests
Download as PDF