Chemical Engineering Thermodynamics MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Chemical Engineering Thermodynamics, 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 Engineering Thermodynamics 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 Engineering Thermodynamics mcq questions that explore various aspects of Chemical Engineering Thermodynamics problems. Each MCQ is crafted to challenge your understanding of Chemical Engineering Thermodynamics 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 Engineering Thermodynamics 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 Engineering Thermodynamics. 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 Engineering Thermodynamics knowledge to the test? Let's get started with our carefully curated MCQs!

Chemical Engineering Thermodynamics MCQs | Page 17 of 55

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Q161.
Enthalpy of a gas depends upon its

a.

temperature

b.

mass

c.

volume

d.

pressure

Discuss
Answer: (a).temperature
Q162.
Which of the following is an undesirable characteristics of a refrigerant ?

a.

It should be non-explosive.

b.

It should have a sub-atmospheric vapor pressure at the temperature in refrigerator coils.

c.

Its vapor pressure at the condenser temperature should be very high.

d.

None of these.

Discuss
Answer: (b).It should have a sub-atmospheric vapor pressure at the temperature in refrigerator coils.
Q163.
"The rate at which a substance reacts is proportional to its active mass and the rate of a chemical reaction is proportional to the product of active masses of the reacting substances". This is the

a.

Lewis-Randall rule.

b.

statement of Vant-Hoff equation.

c.

Le-Chatelier's principle.

d.

none of these.

Discuss
Answer: (d).none of these.
Q164.
What is the ratio of adiabatic compressibility to isothermal compressibility ?

a.

1

b.

< 1

c.

> 1

d.

>> 1

Discuss
Answer: (b).< 1
Q165.
The absolute entropy for all crystalline substances at absolute zero temperature is

a.

zero

b.

negative

c.

more than zero

d.

indeterminate

Discuss
Answer: (a).zero
Q166.
Fugacity is most helpful in

a.

representing actual behaviour of real gases.

b.

representing actual behaviour of ideal gases.

c.

the study of chemical equilibria involving gases at atmospheric pressure.

d.

none of these

Discuss
Answer: (a).representing actual behaviour of real gases.
Q167.
The energy of activation of exothermic reaction is

a.

zero.

b.

negative.

c.

very large compared to that for en-dothermic reaction.

d.

not possible to predict.

Discuss
Answer: (d).not possible to predict.
Q168.
Pick out the wrong statement.

a.

The chemical potential of a pure substance depends upon the temperature and pressure.

b.

The chemical potential of a component in a system is directly proportional to the escaping tendency of that component.

c.

The chemical potential of ith species (ฮผi) in an ideal gas mixture approaches zero as the pressure or mole fraction (xi) tends to be zero at constant temperature.

d.

None of the above

Discuss
Answer: (c).The chemical potential of ith species (ฮผi) in an ideal gas mixture approaches zero as the pressure or mole fraction (xi) tends to be zero at constant temperature.
Q169.
In the reaction; Nโ‚‚ + Oโ‚‚ โ†” 2NO, increasing the pressure will result in

a.

shifting the equilibrium towards right,

b.

shifting the equilibrium towards left.

c.

no change in equilibrium condition.

d.

none of these.

Discuss
Answer: (c).no change in equilibrium condition.
Q170.
A cyclic engine exchanges heat with two reservoirs maintained at 100 and 300°C respectively. The maximum work (in J) that can be obtained from 1000 J of heat extracted from the hot reservoir is

a.

349

b.

651

c.

667

d.

1000

Discuss
Answer: (a).349
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