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 8 of 50

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Q71.
The rate constant of a first order reaction depends on the

a.

concentration of the reactant.

b.

temperature.

c.

concentration of the product.

d.

time.

Discuss
Answer: (b).temperature.
Q72.
The effectiveness factor for large value of Thiele modulus (L√(K/D₁)) of a solid catalysed first order reaction is equal to (where, L = length of the reactor, cm, D₁ = diffusion co-efficient, cm²/second)

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (b).B
Q73.
Following isothermal kinetic data are obtained in a basket type of mixed flow reactor for a porous catalyst. Determine the role of pore diffusion and external mass transfer processes.

a.

Strong pore diffusion control and mass transfer not controlling.

b.

Both pore diffusion and mass transfer not controlling.

c.

Both pore diffusion and mass transfer controlling.

d.

Mass transfer controlling.

Discuss
Answer: (a).Strong pore diffusion control and mass transfer not controlling.
Q74.
For a solid catalysed chemical reaction, the effectiveness of solid catalyst depends upon the __________ adsorption.

a.

physical

b.

chemical

c.

both (a) and (b)

d.

neither (a) nor (b)

Discuss
Answer: (b).chemical
Q75.
Pick out the correct statement.

a.

In catalytic reactions, the catalyst reacts with the reactants.

b.

A catalyst initiates a chemical reaction.

c.

A catalyst lowers the activation energy of the reacting molecules.

d.

A catalyst can not be recovered chemi cally unchanged at the end of the chemical reaction.

Discuss
Answer: (c).A catalyst lowers the activation energy of the reacting molecules.
Q76.
A reaction in which one of the products of reaction acts as a catalyst is called a/an __________ reaction.

a.

catalytic

b.

autocatalytic

c.

photochemical

d.

none of these

Discuss
Answer: (b).autocatalytic
Q77.
The ratio of volume of mixed reactor to the volume of P.F.R. (for identical flow rate, feed composition and conversion) for zero order reaction is

a.

∞

b.

0

c.

1

d.

> 1

Discuss
Answer: (c).1
Q78.
Which of the following will favour the reverse reaction in a chemical equilibrium reaction ?

a.

Increasing the concentration of one of the reactants.

b.

Increasing the concentration of one or more of the products.

c.

Removal of at least one of the products at regular interval.

d.

None of these.

Discuss
Answer: (b).Increasing the concentration of one or more of the products.
Q79.
Conversion increases with increase in temperature in case of a an __________ reaction.

a.

autocatalytic

b.

irreversible

c.

reversible endothermic

d.

reversible exothermic

Discuss
Answer: (c).reversible endothermic
Q80.
At a given temperature, K₁, K₂ and K₃ are equilibrium constants for the following reactions 1, 2, 3 respectively.

CH₄(g) + H₂O(g) ↔ CO(g) + 3H₂(g)
CO(g) + H₂O(g) ↔ CO₂(g) + H₂(g)
CH₄(g) + 2H₂O(g) ↔ CO₂(g) + 4H₂(g)

Then K1, K2 and K3 are related as:

a.

K₃ = K₁.K₂

b.

K₃ = (K₁.K₂)^0.5

c.

K₃ = (K₁.K₂)/2

d.

K₃ = (K₁.K₂)²

Discuss
Answer: (a).K₃ = K₁.K₂
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