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 8 of 55

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Q71.
"At the absolute zero temperature, the entropy of every perfectly crystalline substance becomes zero". This follows from the

a.

third law of thermodynamics

b.

second law of thermodynamics

c.

Nernst heat theorem

d.

Maxwell's relations

Discuss
Answer: (a).third law of thermodynamics
Q72.
During Joule-Thomson expansion of gases

a.

enthalpy remains constant.

b.

entropy remains constant.

c.

temperature remains constant.

d.

none of these.

Discuss
Answer: (a).enthalpy remains constant.
Q73.
The accentric factor of a materical, 'ฯ‰', is defined as ฯ‰ = -logโ‚โ‚€(Prsat)Trโป¹ = 0.7, where, Prsat = reduced vapor pressure, Tr = reduced temperature. The value of accentric factor is always

a.

> 2

b.

< 1

c.

> 1

d.

< 3

Discuss
Answer: (b).< 1
Q74.
Degress of freedom at triple point will be

a.

0

b.

1

c.

2

d.

3

Discuss
Answer: (a).0
Q75.
"Law of corresponding states" says that

a.

two different gases behave similarly, if their reduced properties (i.e. P, V and T) are same.

b.

the surface of separation (i. e. the meniscus) between liquid and vapour phase disappears at the critical temperature.

c.

no gas can be liquified above the critical temperature, howsoever high the pressure may be.

d.

the molar heat of energy of gas at constant volume should be nearly constant (about 3 calories).

Discuss
Answer: (a).two different gases behave similarly, if their reduced properties (i.e. P, V and T) are same.
Q76.
Linde gas liquefaction process employs cooling

a.

by throttling

b.

by expansion in an engine

c.

at constant pressure

d.

none of these

Discuss
Answer: (a).by throttling
Q77.
Pick out the wrong statement pertaining to the decomposition of PClโ‚… represented by,

PClโ‚… โ†” PClโ‚ƒ + Clโ‚‚

Degree of dissociation of PClโ‚… will

a.

decrease on addition of Clโ‚‚.

b.

increase on addition of an inert gas at constant pressure.

c.

decrease on increasing the pressure of the system.

d.

none of these

Discuss
Answer: (d).none of these
Q78.
Joule-Thomson experiment is

a.

isobaric

b.

adiabatic

c.

isenthalpic

d.

both(b) & (c)

Discuss
Answer: (d).both(b) & (c)
Q79.
Boyle's law for gases states that

a.

P โˆ 1/V, when temperature is constant.

b.

P โˆ 1/V, when temperature & mass of the gas remain constant.

c.

P โˆ V, at constant temperature & mass of the gas.

d.

P/V = constant, for any gas.

Discuss
Answer: (b).P โˆ 1/V, when temperature & mass of the gas remain constant.
Q80.
1st law of thermodynamics is nothing but the law of conservation of

a.

momentum

b.

mass

c.

energy

d.

none of these

Discuss
Answer: (c).energy
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