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 26 of 55

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Q251.
If the heat of solution of an ideal gas in a liquid is negative, then its solubility at a given partial pressure varies with the temperature as

a.

solubility increases as temperature increases.

b.

solubility increases as temperature decreases.

c.

solubility is independent of temperature.

d.

solubility increases or decreases with temperature depending on the Gibbs free energy change of solution.

Discuss
Answer: (b).solubility increases as temperature decreases.
Q252.
In case of a reversible process (following pvⁿ = constant), work obtained for trebling the volume (v₁ = 1 m³ and v₂ = 3 m³ ) is max imum, when the value of 'n' is

a.

0

b.

1

c.

y = 1.44

d.

1.66

Discuss
Answer: (a).0
Q253.
The value of Joule-Thomson co-efficient, in case where cooling occurs after the throttling process is

a.

0

b.

∞

c.

+ve

d.

-ve

Discuss
Answer: (c).+ve
Q254.
Adiabatic compression of a saturated water vapour makes it

a.

supersaturated

b.

superheated

c.

both (a) and (b)

d.

neither (a) nor (b)

Discuss
Answer: (b).superheated
Q255.
The specific heat of saturated water vapour at 100°C is

a.

∞

b.

-ve

c.

0

d.

+ve

Discuss
Answer: (b).-ve
Q256.
For a multicomponent system, the term chemical potential is equivalent to the

a.

molal concentration difference.

b.

molar free energy.

c.

partial molar free energy.

d.

molar free energy change.

Discuss
Answer: (c).partial molar free energy.
Q257.
The change in Gibbs freee energy for vaporisation of a pure substance is

a.

positive

b.

negative

c.

zero

d.

may be positive or negative

Discuss
Answer: (c).zero
Q258.
In an ideal refrigeration cycle, the change in internal energy of the fluid is

a.

+ve

b.

-ve

c.

0

d.

either of the above three ; depends on the nature of refrigerant.

Discuss
Answer: (c).0
Q259.
Free energy

a.

decreases in all spontaneous (or irreversible) processes.

b.

change during a spontaneous process has a negative value.

c.

remains unchanged in reversible processes carried at constant temperature and pressure.

d.

all (a), (b) and (c).

Discuss
Answer: (d).all (a), (b) and (c).
Q260.
"If different processes are used to bring about the same chemical reaction, the enthalpy change is same for all of them". This is __________ law.

a.

Hess's

b.

Kirchoff's

c.

Lavoisier and Laplace

d.

none of these

Discuss
Answer: (a).Hess's
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