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 14 of 50

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Q131.
Pick out the correct statement.

a.

A lower temperature favours the reaction of lower activation energy.

b.

The dispersion number for a reactor/vessel is uL/D.

c.

The rate controlling step in a reaction involving many steps is the fastetst step.

d.

Pore volume and porosity of a catalyst is measured by Brunaver-Emmet-Teller (BET) technique.

Discuss
Answer: (a).A lower temperature favours the reaction of lower activation energy.
Q132.
If a solid-gas non-catalytic reaction occurs at very high temperature, the rate controlling step is the __________ diffusion.

a.

film

b.

ash layer

c.

pore

d.

none of these

Discuss
Answer: (a).film
Q133.
The units of frequency factor in Arhenious equation

a.

are the same as those of the rate constant.

b.

depend on the order of the reaction.

c.

depend on temperature, pressure etc. of the reaction.

d.

are cycles per unit time.

Discuss
Answer: (a).are the same as those of the rate constant.
Q134.
Which of the following is not a chemical step in a fluid solid catalytic reaction ?

a.

Surface chemical reaction

b.

Adsorption

c.

Desorption

d.

None of these

Discuss
Answer: (d).None of these
Q135.
The rate of a chemical reaction is almost doubled for every 10°C rise in temperature. The rate will increase __________ times, if the temperature rises form 10 to 100°C.

a.

256

b.

512

c.

112

d.

612

Discuss
Answer: (b).512
Q136.
A catalyst in a chemical reaction __________ free energy change in the reaction.

a.

increases

b.

decreases

c.

either (a) or (b); depends on the type of catalyst

d.

neither (a) nor (b).

Discuss
Answer: (c).either (a) or (b); depends on the type of catalyst
Q137.
Signal normally used to study non-ideal flow by stimulus response technique is __________ input.

a.

pulse

b.

step

c.

both (a) & (b)

d.

neither (a) nor (b).

Discuss
Answer: (c).both (a) & (b)
Q138.
When all the limiting reactant is consumed in the reaction, the operational yield __________ the relative yield.

a.

is greater than

b.

is smaller than

c.

equals

d.

can be either greater or smaller than (depends on the type of reaction)

Discuss
Answer: (c).equals
Q139.
The half life period of a first order reaction is

a.

always the same irrespective of the reaction.

b.

independent on initial concentration of the reactants.

c.

proportional to the initial concentration of reactants.

d.

half the specific rate constant.

Discuss
Answer: (b).independent on initial concentration of the reactants.
Q140.
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.
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