Thermodynamics MCQs with Answers

adminJune 12, 2024

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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

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

Condensation

Freezing

Melting

2 / 40

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

Condensation

Sublimation

Evaporation

3 / 40

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

Entropy

Energy

Enthalpy

4 / 40

What is the SI unit of power?

Watt

Joule

Newton

5 / 40

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

Boiling Point

Melting Point

Freezing Point

6 / 40

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

Sublimation

Vaporization

Condensation

7 / 40

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

First Law of Thermodynamics

Third Law of Thermodynamics

Second Law of Thermodynamics

8 / 40

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

Gibbs Free Energy

Enthalpy

Entropy

9 / 40

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

Latent Heat

Thermal Conductivity

Specific Heat Capacity

10 / 40

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

Heat

Energy

Temperature

11 / 40

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

Sublimation

Vaporization

Condensation

12 / 40

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

Conduction

Convection

Radiation

13 / 40

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

Third Law of Thermodynamics

Second Law of Thermodynamics

First Law of Thermodynamics

14 / 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

Thermal Conductivity

Latent Heat

15 / 40

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

Convection

Radiation

Conduction

16 / 40

What is the specific heat capacity of water?

4.18 J/g°C

1 J/g°C

2.5 J/g°C

17 / 40

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

Latent Heat of Vaporization

Specific Heat Capacity

Latent Heat of Fusion

18 / 40

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

Third Law of Thermodynamics

Second Law of Thermodynamics

First Law of Thermodynamics

19 / 40

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

Entropy

Enthalpy

Energy

20 / 40

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

Melting

Sublimation

Freezing

21 / 40

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

Condensation

Vaporization

Sublimation

22 / 40

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

Specific Heat Capacity

Latent Heat of Vaporization

Latent Heat of Fusion

23 / 40

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

Deposition

Condensation

Sublimation

24 / 40

What is the total energy of a system called?

Enthalpy

Internal Energy

Entropy

25 / 40

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

Kelvin

Celsius

Fahrenheit

26 / 40

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

Kinematics

Thermodynamics

Electrodynamics

27 / 40

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

Carnot Efficiency

Rankine Efficiency

Brayton Efficiency

28 / 40

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

Thermal Equilibrium

Mechanical Equilibrium

Chemical Equilibrium

29 / 40

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

Celsius

Kelvin

Fahrenheit

30 / 40

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

Sublimation

Vaporization

Condensation

31 / 40

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

Sublimation

Condensation

Deposition

32 / 40

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

Latent Heat

Heat Capacity

Specific Heat Capacity

33 / 40

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

Carnot Efficiency

Efficiency

Thermal Efficiency

34 / 40

What is the transfer of heat energy through electromagnetic waves?

Conduction

Convection

Radiation

35 / 40

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

Specific Heat Capacity

Latent Heat of Fusion

Latent Heat of Vaporization

36 / 40

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

Evaporation

Sublimation

Condensation

37 / 40

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

Molar Heat Capacity

Thermal Conductivity

Specific Heat Capacity

38 / 40

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

Latent Heat

Thermal Conductivity

Specific Heat Capacity

39 / 40

What is the SI unit of energy?

Watt

Newton

Joule

40 / 40

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

Latent Heat of Fusion

Latent Heat of Vaporization

Specific Heat Capacity

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adminJune 12, 2024

0 11 1 minute read