Explore topic-wise MCQs in Separation Processes.

This section includes 12 Mcqs, each offering curated multiple-choice questions to sharpen your Separation Processes knowledge and support exam preparation. Choose a topic below to get started.

1.

When is fick’s law applied?

A. For passive diffusion down the concentration gradient
B. Passive osmosis along concentration gradient
C. Active osmosis along concentration gradient
D. Active and passive movement of molecule along concentration gradient
Answer» B. Passive osmosis along concentration gradient
Discussion
2.

What id D ab called in the Fick’s law?

A. Thermal conductivity
B. Density coefficient
C. Diffusivity
D. Electrical conductivity
Answer» D. Electrical conductivity
Discussion
3.

Which of the following is correct representation of Fick’s law of diffusion?

A. J z = -D*dc a /dz
B. J z = -D*dT/ds
C. J z = D*dc a /dz
D. J z = -D*c a /dz
Answer» B. J z = -D*dT/ds
Discussion
4.

WHEN_IS_FICK‚ÄÖ√Ñ√∂‚ÀÖ√Ë‚ÀÖ¬•S_LAW_APPLIED??$#

A. For passive diffusion down the concentration gradient
B. Passive osmosis along concentration gradient
C. Active osmosis along concentration gradient
D. Active and passive movement of molecule along concentration gradient
Answer» B. Passive osmosis along concentration gradient
Discussion
5.

Which diffusion occurs when turbulent motion is there?

A. Molar diffusion
B. Eddy diffusion
C. Charge diffusion
D. No diffusion
Answer» C. Charge diffusion
Discussion
6.

Why does the diffusion of A with respect to B occur?

A. Due to concentration gradient
B. To to volume gradient
C. Due to velocity gradiet
D. Due to change in heat
Answer» B. To to volume gradient
Discussion
7.

Which of the following is FALSE about unimolar diffusion?

A. N b = N a
B. N= N a
C. N a = x a N a – cD ab (dx a /dz)
D. X b N a = cD ba (dx b /dz)
Answer» B. N= N a
Discussion
8.

Which of the following is untrue about equimolar diffusion?

A. N <sub>a</sub> + N <sub>b</sub> =0
B. J <sub>a</sub> = J <sub>b</sub>
C. N=0
D. N <sub>a</sub> = -cD BA (dx <sub>b</sub> /dz)
Answer» C. N=0
Discussion
9.

Which of the following formulae is right about molar flux?

A. N <sub>a</sub> = x <sub>A</sub> N – D <sub>ab</sub> (dx <sub>a</sub> /d z )
B. N <sub>a</sub> = x <sub>A</sub> N – (dx <sub>a</sub> /d z )
C. N <sub>a</sub> = x <sub>A</sub> N – cD <sub>ab</sub>
D. N <sub>a</sub> = x <sub>A</sub> N – cD <sub>ab</sub> (dx <sub>a</sub> /d z )
Answer» E.
Discussion
10.

What id D ab called in the Fick’s law?$

A. Thermal conductivity
B. Density coefficient
C. Diffusivity
D. Electrical conductivity
Answer» D. Electrical conductivity
Discussion
11.

Which of the following is correct representation of Fick’s law of diffusion?$

A. J <sub>z</sub> = -D*dc <sub>a</sub> /dz
B. J <sub>z</sub> = -D*dT/ds
C. J <sub>z</sub> = D*dc <sub>a</sub> /dz
D. J <sub>z</sub> = -D*c <sub>a</sub> /dz
Answer» B. J <sub>z</sub> = -D*dT/ds
Discussion
12.

Which of the following is Fourier law of heat conduction?

A. q <sub>z</sub> = k*dT <sub>z</sub>/dZ
B. q <sub>z</sub> = – k*dT <sub>z</sub> /dZ
C. q <sub>z</sub> = k*T <sub>z</sub> /dZ
D. q <sub>z</sub> = k*dQ <sub>z</sub> /dZ
Answer» C. q <sub>z</sub> = k*T <sub>z</sub> /dZ
Discussion