Thermodynamics Concepts Quiz
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Questions and Answers

What is the key characteristic of the energy of an isolated system?

  • The energy is always increasing
  • The energy is always decreasing
  • The energy is always constant (correct)
  • The energy can change in any direction

    • Which property can be used to differentiate thermodynamics from other sciences?

  • Volume
  • Temperature (correct)
  • Mass
  • Pressure

    • What is the direction of the thermodynamic work done by the system on the surroundings?

  • Positive (correct)
  • Negative
  • Depends on the system
  • Neutral

    • What happens to the internal energy of a system when the heat transfer into the system is more than the work transfer out of the system?

    <p>The internal energy increases</p> Signup and view all the answers

    Which statement about the interchangeability of heat and work is correct?

    <p>Heat and work are not interchangeable forms of energy</p> Signup and view all the answers

    Which of the following is NOT a heat engine cycle?

    <p>Refrigerator</p> Signup and view all the answers

    What is the efficiency of a heat engine cycle defined as?

    <p>The ratio of total heat input to the cycle (Q_in) to net work output of the cycle (W_net)</p> Signup and view all the answers

    What is the key property of a thermal energy reservoir (TER)?

    <p>It has an infinite heat capacity</p> Signup and view all the answers

    What is true about two reversible adiabatic paths?

    <p>They cannot intersect with each other</p> Signup and view all the answers

    What property of a system is constant during a reversible adiabatic process?

    <p>Entropy</p> Signup and view all the answers

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