Mass Transfer MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Mass Transfer, a fundamental topic in the field of Basic Chemical Engineering. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Mass Transfer 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 Mass Transfer mcq questions that explore various aspects of Mass Transfer problems. Each MCQ is crafted to challenge your understanding of Mass Transfer principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Basic Chemical Engineering tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Mass Transfer MCQs are your pathway to success in mastering this essential Basic Chemical Engineering topic.

Note: Each of the following question comes with multiple answer choices. Select the most appropriate option and test your understanding of Mass Transfer. 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 Mass Transfer knowledge to the test? Let's get started with our carefully curated MCQs!

Mass Transfer MCQs | Page 67 of 67

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Q661.
Chemisorption compared to physical absorption has

a.

lower adsorption rate.

b.

lower capacity of the solvent for the solute gas.

c.

increased utilisation of stagnant zones of the liquid phase.

d.

none of these.

Discuss
Answer: (c).increased utilisation of stagnant zones of the liquid phase.
Q662.
Rate of adsorption increases as the

a.

temperature increases.

b.

temperature decreases.

c.

pressure decreases.

d.

size of adsorbent increases.

Discuss
Answer: (b).temperature decreases.
Q663.
Pick out the system with maximum boiling azeotrope at 1 atm.

a.

acetone chloroform

b.

ethyl alcohol-water

c.

benzene-ethyl alcohol

d.

none of these

Discuss
Answer: (a).acetone chloroform
Q664.
As the reflux ratio, in a continuous counter-current extraction is increased, the number of stages

a.

increase

b.

decrease

c.

remain unchanged

d.

can either increase or decrease, depends on the system

Discuss
Answer: (b).decrease
Q665.
In triangular co-ordinates, the ternery composition point falls __________ of the triangle.

a.

in the corners

b.

inside

c.

on the sides

d.

none of these.

Discuss
Answer: (b).inside
Q666.
In a single stage extraction process, 10 kg of pure solvent S (containing no solute A) is mixed with 30 kg of feed F containing A at a mass fraction xf = 0.2. The mixture splits into an extract phase E and a raf-finate phase R containing A at xB = 0.5 and xR = 0.05 respectively. The total mass of the extract phase is (in Kg)

a.

6.89

b.

8.89

c.

10

d.

8.25

Discuss
Answer: (b).8.89
Q667.
Penetration theory states that the mass transfer co-coefficient is equal to (where, De is diffusivity and 't' is time)

a.

(De.t)^1/2

b.

(De/t)^1/2

c.

(4De/πt)^1/2

d.

(4De/t)

Discuss
Answer: (c).(4De/πt)^1/2
Q668.
Reboiler is considered as one theoretical plate, because

a.

of the assumption that vapour and liquid leaving the reboiler are in equilibrium.

b.

vapour is recycled to the column.

c.

reboiler itself contains one plate.

d.

none of these.

Discuss
Answer: (a).of the assumption that vapour and liquid leaving the reboiler are in equilibrium.
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