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 23 of 50

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Q221.
An isothermal aqueous phase reversible reaction, P โ†” R, is to be carried out in a mixed flow reactor. The reaction rate in k.mole/m³ .h is given by, r = 0.5Cโ‚š - 0.125Cส€. A stream containing only P enters the reactor. The residence time required (in hours) for 40% conversion of P is

a.

0.80

b.

1.33

c.

1.60

d.

2.67

Discuss
Answer: (c).1.60
Q222.
Design of heterogeous catalytic reactor involves consideration of __________ steps.

a.

only chemical

b.

only physical

c.

both (a) & (b)

d.

neither (a) nor (b)

Discuss
Answer: (c).both (a) & (b)
Q223.
What is the unit of the rate constant in a chemical reaction in which 10% of the reactant decomposes in one hour, 20% in two hours, 30% in three hours and so on ?

a.

Litre/mole.second

b.

Moles/litre.second

c.

Litre/mole

d.

Litre/second

Discuss
Answer: (a).Litre/mole.second
Q224.
For a fluidised bed reactor, the most suitable/relevant model is a __________ model.

a.

tank in series

b.

bubbling bed

c.

plug flow

d.

none of these

Discuss
Answer: (b).bubbling bed
Q225.
In a reaction, the threshold energy is equal to (where, A = activation energy N = normal energy of reactants)

a.

A

b.

N

c.

A+N

d.

A-N

Discuss
Answer: (c).A+N
Q226.
Thermodynamic equilibrium constant in a system is affected by

a.

inerts

b.

pressure

c.

temperature

d.

all (a), (b) & (c)

Discuss
Answer: (c).temperature
Q227.
The most suitable reactor for carrying out an auto-thermal reaction is a

a.

batch reactor

b.

CSTR

c.

semi-batch reactor

d.

plug-flow reactor

Discuss
Answer: (b).CSTR
Q228.
Which of the following chemical reactions will be favoured by low pressure ?

a.

2HI โ†” Hโ‚‚ + I2

b.

Nโ‚‚Oโ‚‚ โ†” 2NOโ‚‚

c.

Nโ‚‚ + Oโ‚‚ โ†” 2NO

d.

none of these

Discuss
Answer: (b).Nโ‚‚Oโ‚‚ โ†” 2NOโ‚‚
Q229.
Which of the following is an autocatalytic reaction ?

a.

Photochemical reactions

b.

Microbial fermentation reaction

c.

Enzyme fermentation reaction

d.

Ammonia synthesis reaction

Discuss
Answer: (b).Microbial fermentation reaction
Q230.
The performance of a cascade of CSTR's can be improved by adding

a.

a P.F. reactor in series.

b.

a P.F. reactor in parallel.

c.

more CSTR's in series.

d.

more CSTR's in parallel.

Discuss
Answer: (c).more CSTR's in series.
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