Thermodynamics MCQs with Answers

adminJune 12, 2024

0 10 1 minute read

Welcome to the Thermodynamics MCQs with Answers. In this post, we have shared Thermodynamics Online Test for different competitive exams. Find practice Thermodynamics Practice Questions with answers in Physics Tests exams here. Each question offers a chance to enhance your knowledge regarding Thermodynamics.

Thermodynamics Online Quiz

By presenting 3 options to choose from, Thermodynamics Quiz which cover a wide range of topics and levels of difficulty, making them adaptable to various learning objectives and preferences. You will have to read all the given answers of Thermodynamics Questions and Answers and click over the correct answer.

Test Name: Thermodynamics MCQ Quiz Practice
Type: Quiz Test
Total Questions: 40
Total Marks: 40
Time: 40 minutes

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Thermodynamics

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1 / 40

Which law of thermodynamics states that energy cannot be created or destroyed, only transformed from one form to another?

Second Law of Thermodynamics

First Law of Thermodynamics

Third Law of Thermodynamics

2 / 40

What is the process of a substance changing from a gas to a solid?

Deposition

Sublimation

Condensation

3 / 40

What is the heat capacity of a substance per unit mass?

Thermal Conductivity

Specific Heat Capacity

Molar Heat Capacity

4 / 40

What is the measure of the average kinetic energy of the particles in a substance?

Heat

Temperature

Energy

5 / 40

What is the process of a substance changing directly from a gas to a solid without passing through the liquid phase?

Condensation

Sublimation

Deposition

6 / 40

What is the maximum efficiency of a heat engine operating between two temperature reservoirs?

Rankine Efficiency

Brayton Efficiency

Carnot Efficiency

7 / 40

What is the process of a substance changing from a gas to a liquid at constant temperature called?

Sublimation

Vaporization

Condensation

8 / 40

What is the process of a substance changing directly from a solid to a gas called?

Sublimation

Vaporization

Condensation

9 / 40

What is the SI unit of energy?

Watt

Newton

Joule

10 / 40

What is the ratio of the heat extracted from a system to the work done on the system in a heat engine?

Efficiency

Thermal Efficiency

Carnot Efficiency

11 / 40

What is the SI unit of power?

Newton

Joule

Watt

12 / 40

What is the internal energy of a system plus the product of its pressure and volume?

Entropy

Enthalpy

Gibbs Free Energy

13 / 40

What is the process of a substance changing from a solid to a liquid?

Melting

Sublimation

Freezing

14 / 40

What is the process of a substance changing from a liquid to a gas?

Vaporization

Sublimation

Condensation

15 / 40

What is the process of transferring heat through direct contact between particles of a substance?

Conduction

Radiation

Convection

16 / 40

What is the quantity of heat required to change the phase of one unit mass of a substance called?

Latent Heat

Specific Heat Capacity

Thermal Conductivity

17 / 40

What is the transfer of heat energy through the movement of fluids?

Convection

Conduction

Radiation

18 / 40

What is the total energy of a system called?

Entropy

Enthalpy

Internal Energy

19 / 40

Which law of thermodynamics states that the entropy of a perfect crystal at absolute zero is zero?

Second Law of Thermodynamics

Third Law of Thermodynamics

First Law of Thermodynamics

20 / 40

What is the specific heat capacity of water?

4.18 J/g°C

1 J/g°C

2.5 J/g°C

21 / 40

What is the process of a substance changing from a gas to a liquid at constant temperature and pressure?

Vaporization

Sublimation

Condensation

22 / 40

What is the state of a system in which there is no change in temperature or pressure?

Mechanical Equilibrium

Thermal Equilibrium

Chemical Equilibrium

23 / 40

What is the branch of physics that deals with heat and temperature, and their relation to energy and work?

Kinematics

Electrodynamics

Thermodynamics

24 / 40

What is the measure of the heat energy required to raise the temperature of a substance by one degree Celsius?

Specific Heat Capacity

Heat Capacity

Latent Heat

25 / 40

What is the process of a substance changing from a liquid to a solid?

Melting

Condensation

Freezing

26 / 40

What is the process of a substance changing directly from a solid to a gas without passing through the liquid phase?

Evaporation

Condensation

Sublimation

27 / 40

What is the heat required to change the phase of a substance at its boiling point called?

Specific Heat Capacity

Latent Heat of Fusion

Latent Heat of Vaporization

28 / 40

What is the heat required to change the phase of a substance at its freezing point called?

Latent Heat of Vaporization

Specific Heat Capacity

Latent Heat of Fusion

29 / 40

What is the heat required to change the phase of a substance at its melting point called?

Specific Heat Capacity

Latent Heat of Vaporization

Latent Heat of Fusion

30 / 40

What is the process of a substance changing from a gas to a liquid?

Condensation

Sublimation

Evaporation

31 / 40

What is the heat required to change the phase of a substance from a solid to a liquid called?

Latent Heat of Vaporization

Specific Heat Capacity

Latent Heat of Fusion

32 / 40

What is the point at which a substance changes from a liquid to a gas called?

Melting Point

Boiling Point

Freezing Point

33 / 40

What is the temperature scale that uses the freezing and boiling points of water as its reference points?

Kelvin

Celsius

Fahrenheit

34 / 40

What is the principle that states that the internal energy of a closed system remains constant?

First Law of Thermodynamics

Third Law of Thermodynamics

Second Law of Thermodynamics

35 / 40

What is the measure of the ability of a material to conduct heat?

Thermal Conductivity

Latent Heat

Specific Heat Capacity

36 / 40

What is the measure of the disorder or randomness of a system?

Entropy

Energy

Enthalpy

37 / 40

What is the transfer of heat energy through electromagnetic waves?

Convection

Conduction

Radiation

38 / 40

What is the amount of heat required to raise the temperature of one gram of a substance by one degree Celsius?

Specific Heat Capacity

Latent Heat

Thermal Conductivity

39 / 40

What is the measure of disorder or randomness in a system?

Entropy

Energy

Enthalpy

40 / 40

What is the temperature scale that uses absolute zero as its zero point?

Fahrenheit

Kelvin

Celsius

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adminJune 12, 2024

0 10 1 minute read