Thermodynamics

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Question 1

Which of the following is the first law of thermodynamics?

  • Energy can be created and destroyed

  • The total entropy of an isolated system always increases

  • Energy cannot be created or destroyed, only transformed

  • Heat flows from low to high temperature spontaneously

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Question 2

What is the SI unit of temperature?

  • Kelvin

  • Celsius

  • Joule

  • Fahrenheit

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Question 3

Which of the following processes is an example of an isothermal process?

  • A gas being compressed adiabatically

  • A gas expanding while keeping its temperature constant

  • A gas expands while its temperature increases

  • A gas undergoing a free expansion

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Question 4

In thermodynamics, what is the term used for the measure of the disorder of a system?

  • Enthalpy

  • Energy

  • Entropy

  • Internal energy

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Question 5

In which of the following processes does the internal energy of the system remain constant?

  • Isobaric process

  • Isochoric process

  • Isothermal process

  • Adiabatic process

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Question 6

Which of the following statements is true for an adiabatic process?

  • The system does not exchange energy with its surroundings

  • The system loses energy to its surroundings

  • Heat is transferred from the surroundings to the system

  • The system undergoes a constant volume process

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Question 7

Which of the following thermodynamic quantities is always conserved?

  • Entropy

  • Heat

  • Work

  • Energy

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Question 8

What happens to the entropy of an isolated system during a spontaneous process?

  • It decreases

  • It increases

  • It remains constant

  • It becomes zero

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Question 9

Which of the following statements best describes the second law of thermodynamics?

  • Energy is conserved in all processes

  • The entropy of an isolated system always decreases

  • Heat spontaneously flows from a cold body to a hot body

  • The entropy of an isolated system always increases

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Question 10

Which of the following is the correct statement for an isochoric process?

  • The volume of the system remains constant

  • The pressure of the system remains constant

  • The temperature of the system remains constant

  • The heat added is equal to the work done by the system

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Physics

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