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 44 of 55

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Q431.
The fusion of a crystalline solid at its melting point to form a liquid at the same temperature is accompanied by

a.

decrease in enthalpy corresponding to evolution of heat.

b.

decrease of entropy.

c.

increase in enthalpy corresponding to absorption of heat.

d.

no change in enthalpy.

Discuss
Answer: (c).increase in enthalpy corresponding to absorption of heat.
Q432.
Melting of ice is an example of an __________ process.

a.

adiabatic

b.

isothermal

c.

isometric

d.

none of these

Discuss
Answer: (b).isothermal
Q433.
Dryness fraction of wet steam is defined as the ratio of mass of vapour in the mixture to the mass of mixture __________ calorimeter is not used for measuring the dryness fraction of steam.

a.

Bomb

b.

Separating

c.

Bucket

d.

Throttling

Discuss
Answer: (a).Bomb
Q434.
As the time is passing, entropy of the universe

a.

is increasing

b.

is decreasing

c.

remains constant

d.

data insufficient, can't be predicted

Discuss
Answer: (a).is increasing
Q435.
Which of the following processes can not be made reversible even under ideal condition of operation?

a.

Free expansion of a gas.

b.

Compression of air in a compressor.

c.

Expansion of steam in a turbine.

d.

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

Discuss
Answer: (a).Free expansion of a gas.
Q436.
The relation connecting the fugacities of various components in a solution with one another and to composition at constant temperature and pressure is called the __________ equation.

a.

Gibbs-Duhem

b.

Van Laar

c.

Gibbs-Helmholtz

d.

Margules

Discuss
Answer: (a).Gibbs-Duhem
Q437.
Steam undergoes isentropic expansion in a turbine from 5000 kPa and 400°C (entropy = 6.65 kJ/kg K) to 150 kPa) (entropy of saturated liquid = 1.4336 kJ/kg . K, entropy of saturated vapour = 7.2234 kJ/kg. K) The exit condition of steam is

a.

superheated vapour.

b.

partially condensed vapour with quality of 0.9.

c.

saturated vapour.

d.

partially condensed vapour with quality of 0.1.

Discuss
Answer: (a).superheated vapour.
Q438.
An isentropic process is carried out at constant

a.

volume

b.

pressure

c.

temperature

d.

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

Discuss
Answer: (a).volume
Q439.
All gases except __________ shows a cooling effect during throttling process at atmospheric temperature and pressure.

a.

oxygen

b.

nitrogen

c.

air

d.

hydrogen

Discuss
Answer: (d).hydrogen
Q440.
High pressure steam is expanded adiabati-cally and reversibly through a well insulated turbine, which produces some shaft work. If the enthalpy change and entropy change across the turbine are represented by ฮ”H and ฮ”S respectively for this process:

a.

ฮ” H = 0 and ฮ”S = 0.

b.

ฮ” H โ‰  0 and ฮ”S = 0.

c.

ฮ” H โ‰  0 and ฮ”S โ‰  0.

d.

ฮ” H = 0 and ฮ”S โ‰  0.

Discuss
Answer: (b).ฮ” H โ‰  0 and ฮ”S = 0.
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