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 41 of 55

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Q401.
The efficiency of a Carnot heat engine operating between absolute temperatures T₁ and T₂ (when, T₁ > T₂) is given by (T₁ - T₂)/T₁. The co-efficient of performance (C.O.P.) of a Carnot heat pump operating between T₁ and T₂ is given by

a.

T₁/(T₁-T₂)

b.

T₂/(T₁-T₂)

c.

T₁/T₂

d.

T₂/R₁

Discuss
Answer: (a).T₁/(T₁-T₂)
Q402.
Throttling (Joule-Thomson effect) process is a constant __________ process.

a.

enthalpy

b.

entropy

c.

pressure

d.

none of these

Discuss
Answer: (a).enthalpy
Q403.
For the reversible exothermic reaction, N₂ + 3H₂ ↔ 2NH₃, increase of pressure would

a.

shift the equilibrium towards right.

b.

give higher yield of NH₃.

c.

both (b) and (c).

d.

neither (a) nor (b).

Discuss
Answer: (c).both (b) and (c).
Q404.
Which of the following has the minimum value of COP for a given refrigeration effect?

a.

Reverse Carnot cycle.

b.

Ordinary vapour-compression cycle.

c.

Vapour-compression process with a reversible expansion engine.

d.

Air refrigeration cycle.

Discuss
Answer: (d).Air refrigeration cycle.
Q405.
__________ decreases during adiabatic throttling of a perfect gas.

a.

Entropy

b.

Temperature

c.

Enthalpy

d.

Pressure

Discuss
Answer: (d).Pressure
Q406.
Pick out the wrong statement.

a.

Minimum number of degree of freedom of a system is zero.

b.

Degree of freedom of a system containing a gaseous mixture of helium, carbon dioxide and hydrogen is 4.

c.

For a two phase system in equilibrium made up of four non-reacting chemical species, the number of degrees of freedom is 4.

d.

Enthalpy and internal energy change is zero during phase change processes like melting, vaporisation and sublimation.

Discuss
Answer: (d).Enthalpy and internal energy change is zero during phase change processes like melting, vaporisation and sublimation.
Q407.
Tea kept in a thermos flask is vigorously shaken. If the tea is considered as a system, then its temperature will

a.

increase

b.

decrease

c.

remain unchanged

d.

first fall and then rise.

Discuss
Answer: (a).increase
Q408.
Change of heat content when one mole of compound is burnt in oxygen at constant pressure is called the

a.

calorific value

b.

heat of reaction

c.

heat of combustion

d.

heat of formation

Discuss
Answer: (c).heat of combustion
Q409.
Clausius - Clayperon equation is applicable to __________ equilibrium processes.

a.

solid-vapor

b.

solid-liquid

c.

liquid-vapor

d.

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

Discuss
Answer: (d).all (a), (b) and (c)
Q410.
In which of the following reaction equilibria, the value of equilibrium constant Kp will be more than is Kc ?

a.

2HI ↔ H₂ + I₂

b.

N₂O₄ ↔ 2NO₂

c.

2SO₂ + O₂ ↔ 2SO₃

d.

none of these

Discuss
Answer: (b).N₂O₄ ↔ 2NO₂
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