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 48 of 50

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Q471.
Rate of a chemical reaction is independent of the concentration of the reactants for a __________ reaction.

a.

zero order

b.

third order

c.

consecutive

d.

none of these

Discuss
Answer: (a).zero order
Q472.
With increase in temperature, the rate constant obeying Arhenious equation

a.

increases.

b.

decreases.

c.

decreases exponentially.

d.

can either increase or decrease ; depends on the frequency factor.

Discuss
Answer: (c).decreases exponentially.
Q473.
Bulk diffusion in catalyst pore __________ with increase in pressure.

a.

increases

b.

decreases

c.

remains unchanged

d.

increases exponentially

Discuss
Answer: (b).decreases
Q474.
Pick out the correct statement.

a.

A chemical reaction accompanied by absorption of heat is called an exothermic reaction.

b.

A chemical reaction accompanied by evolution of heat is called an endother-mic reaction.

c.

The rate constant for a first order reaction does not change on changing the concentration units.

d.

Chemical equilibrium state is dynamic in nature.

Discuss
Answer: (c).The rate constant for a first order reaction does not change on changing the concentration units.
Q475.
The concentration of A in a first order reaction, A → B, decreases

a.

linearly with time.

b.

exponentially with time.

c.

very abruptly towards the end of the reaction.

d.

logarithmically with time.

Discuss
Answer: (b).exponentially with time.
Q476.
The equilibrium constant of chemical reaction __________ in the presence of catalyst.

a.

increases

b.

decreases

c.

remains unaffected

d.

can either increase or decrease (depends on the type of catalyst)

Discuss
Answer: (c).remains unaffected
Q477.
The order of a chemical reaction is

a.

an experimentally determined quantity.

b.

always equal to the total stoichiometric number of reactants.

c.

never fractional.

d.

none of these.

Discuss
Answer: (a).an experimentally determined quantity.
Q478.
A chemical reaction occurs, when the energy of the reacting molecules is __________ the activation energy of reaction.

a.

less than

b.

equal to

c.

more than

d.

equal to or more than

Discuss
Answer: (d).equal to or more than
Q479.
B.E.T. method of finding out surface area of a catalyst, uses the extension of __________ isotherm.

a.

Langmuir

b.

Freundlich

c.

Tempkin

d.

none of these

Discuss
Answer: (a).Langmuir
Q480.
In a chemical reaction, repesented by, A → B , it is observed that the

(i) rate of reaction increases by a factor of 4 on doubling the concentration of the reactant.
(ii) rate of reaction increases by a factor of 9 on trebling the concentration of the reactant.

Then the rate of the reaction is proportional to(where, Cᴀ = contentration of the reactant)

a.

Cᴀ

b.

Cᴀ²

c.

Cᴀ³

d.

Cᴀ⁴

Discuss
Answer: (b).Cᴀ²
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