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 38 of 50

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Q371.
The temperature dependence of reaction rate constant (K) by Arhenius law is given by

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (a).A
Q372.
For a __________ order chemical reaction given below, the fractional conversion of reactant 'A' is proportional to time.

a.

zero

b.

first

c.

second

d.

third

Discuss
Answer: (a).zero
Q373.
Consider a reversible exothermic reaction in a plug flow reactor. The maximum and minimum permissible temperatures are Tโ‚˜โ‚โ‚“ and Tโ‚˜แตขโ‚™ respectively. Which of the following temperature (T) profiles will require the shortest residence time to achieve the desired conversion.

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (b).B
Q374.
Rate constant 'k' and absolute temperature 'T' are related by collision theory (for bimolecular) as

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (c).C
Q375.
The residence time distribution of an ideal CSTR is

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (c).C
Q376.
In case of unimolecular type elementary reaction given below, plug flow reactor as compared to mixed reactor is

a.

more

b.

same

c.

less

d.

unpredictable

Discuss
Answer: (a).more
Q377.
The first order series reaction given below, is conducted in a batch reactor. The initial concentrations of A, B and C (Cแด€โ‚€, Cส™โ‚€, Ccโ‚€ respectively) are all non-zero. The variation of Cส™ with reaction time will not show a maximum, if

a.

kโ‚‚ Cส™โ‚€ > kโ‚ Cแด€โ‚€

b.

k Cแด€โ‚€ > kโ‚‚.Cส™โ‚€

c.

Cส™โ‚€ > Cแด€โ‚€

d.

Cแด€โ‚€ > Cส™โ‚€

Discuss
Answer: (a).kโ‚‚ Cส™โ‚€ > kโ‚ Cแด€โ‚€
Q378.
Effectiveness factor (E) of a catalyst pellet is defined as below. Effectiveness factor for a first order reaction is given by (where, T = Thiele modulus)

a.

tan hT/T

b.

tan T/T

c.

tan hT/tan T

d.

none of these

Discuss
Answer: (a).tan hT/T
Q379.
The mean conversion in the exit stream, for a second order, liquid phase reaction in a non-ideal flow reactor is given by

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (a).A
Q380.
Concentration of the limiting reactant (with initial concentration of a moles/litre) after time t is (a-x). Then 't' for a first order reaction is given by

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (a).A
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