Chemical Reaction Engineering MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Chemical Reaction Engineering, 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 Chemical Reaction Engineering 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 Chemical Reaction Engineering mcq questions that explore various aspects of Chemical Reaction Engineering problems. Each MCQ is crafted to challenge your understanding of Chemical Reaction Engineering 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 Chemical Reaction Engineering 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 Chemical Reaction Engineering. 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 Chemical Reaction Engineering knowledge to the test? Let's get started with our carefully curated MCQs!

Chemical Reaction Engineering MCQs | Page 40 of 50

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Q391.
Non-catalytic fluid-solid reactions are represented by __________ model.

a.

continuous reaction

b.

unreacted core

c.

both (a) and (b)

d.

neither (a) and (b)

Discuss
Answer: (c).both (a) and (b)
Q392.
A pulse tracer is introduced in an ideal CSTR (with a mean residence time ฯ„) at time, t = 0. The time taken for the exit concentration of the tracer to reach half of its initial value will be

a.

2ฯ„

b.

0.5ฯ„

c.

ฯ„/0.693

d.

0.693ฯ„

Discuss
Answer: (a).2ฯ„
Q393.
On application of pressure to the equilibrium system, ice โ†” water ; which of the following phenomenon will occur ?

a.

Water will evaporate

b.

Equilibrium will not be attained

c.

More ice will be formed

d.

More water will be formed.

Discuss
Answer: (d).More water will be formed.
Q394.
Participation of __________ is involved in the occurrence of a chemical reaction.

a.

protons

b.

neutrons

c.

electrons

d.

none of these

Discuss
Answer: (c).electrons
Q395.
Promoter.

a.

initiates a chemical reaction and is a catalyst by itself.

b.

atlers the position of equilibrium in a reversible reaction.

c.

increases the number of active centres by increasing the unevenness of catalyst surface and by creating discontinuities in the crystals.

d.

all (a), (b) and (c).

Discuss
Answer: (c).increases the number of active centres by increasing the unevenness of catalyst surface and by creating discontinuities in the crystals.
Q396.
Pure A in gas phase enters a reactor 50% of this A is converted to B through the reaction, A โ†’ 3B. Mole fraction of A in the exit stream is

a.

1/2

b.

1/3

c.

1/4

d.

1/5

Discuss
Answer: (b).1/3
Q397.
The rate of reaction does not decrease appreciably as the reaction proceeds in case of __________ reactions.

a.

autocatalytic

b.

exothermic

c.

endothermic

d.

autothermal

Discuss
Answer: (a).autocatalytic
Q398.
For all positive reaction orders for a particular duty,

a.

mixed reactor is always larger than the plug-flow reactor.

b.

ratio of the volume of the mixed reactor to that of the plug-flow reactor decreases with order.

c.

reactor size is independent of the type of flow.

d.

density variation during reaction affects design.

Discuss
Answer: (a).mixed reactor is always larger than the plug-flow reactor.
Q399.
The heat of reaction

a.

depends on the pressure only.

b.

depends on the mechanism of reaction only.

c.

depends on both pressure and mechanism of reaction.

d.

is independent of the mechanism of reaction.

Discuss
Answer: (d).is independent of the mechanism of reaction.
Q400.
Which of the following does not produce a change in the value of rate constant of a reaction ?

a.

Pressure

b.

Temperature

c.

Concentration and catalyst

d.

None of these.

Discuss
Answer: (c).Concentration and catalyst
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