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 36 of 50

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Q351.
The response curve for a step input signal from a reactor is called C-curve. The variance of C-curve in a 'tanks in series model' comprising of 'm' tanks is equal to

a.

m

b.

1/m

c.

โˆšm

d.

m²

Discuss
Answer: (b).1/m
Q352.
The eddy diffusivity for a liquid in plug flow must be

a.

1

b.

0

c.

โˆž

d.

between 0 and 1

Discuss
Answer: (b).0
Q353.
For multiple reactions, the flow pattern within the vessel affects the

a.

size requirement

b.

distribution of reaction products

c.

both (a) and (b)

d.

neither (a) nor (b)

Discuss
Answer: (c).both (a) and (b)
Q354.
An endothermic second order reaction is carried out in an adiabatic plug flow reactor. The rate of heat generation is

a.

maximum at the inlet of the reactor.

b.

maximum at the exit of the reactor.

c.

maximum at the centre of the reactor.

d.

constant throughout the reactor.

Discuss
Answer: (a).maximum at the inlet of the reactor.
Q355.
Equilibrium of a chemical reaction as viewed by kinetics is a __________ state.

a.

dynamic steady

b.

static steady

c.

dynamic unsteady

d.

none of these

Discuss
Answer: (a).dynamic steady
Q356.
The conversion in a mixed reactor/accomplishing a reaction A โ†’ 3R is 50% when gaseous reactant 'A' is introduced at the rate of 1 litre/second and the leaving flow rate is 2 litres/second. The holding time for this operation is __________ second.

a.

0.5

b.

1

c.

2

d.

3

Discuss
Answer: (a).0.5
Q357.
The size of plug flow reactor (PFR) for all positive reaction orders and for any given duty, is __________ that of mixed reactor.

a.

greater than

b.

equal to

c.

smaller than

d.

unpredictable from the data

Discuss
Answer: (c).smaller than
Q358.
A space time of 3 hours for a flow reactor means that

a.

the time required to process one reactor volume of feed (measured at specified conditions) is 3 hours.

b.

three reactor volumes of feed can be processed every hour.

c.

it takes three hours to dump the entire volume of the reactor with feed.

d.

conversion is cent per cent after three hours.

Discuss
Answer: (a).the time required to process one reactor volume of feed (measured at specified conditions) is 3 hours.
Q359.
Which of the following factors control the deactivation of a porous catalyst pellet ?

a.

Decay reactions.

b.

Pore diffusion.

c.

Form of surface attack by poison.

d.

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

Discuss
Answer: (d).All (a), (b) and (c).
Q360.
For the reaction, A + B โ†’ 2B + C,

a.

rแด€ = rส™

b.

rแด€ = -rส™

c.

rแด€ = 2rส™

d.

rแด€ = rส™/2

Discuss
Answer: (b).rแด€ = -rส™
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