Unit 6 Concepts Quiz

11 Questions | Total Attempts: 254

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Temperature Quizzes & Trivia

Questions and Answers
  • 1. 
    In an isothermal process, there is no change in
    • A. 

      Pressure

    • B. 

      Temperature

    • C. 

      Volume

    • D. 

      Heat

  • 2. 
    A gas is expanded to twice its original volume with no change in its temperature.  This process is ...
    • A. 

      Isothermal

    • B. 

      Isobaric

    • C. 

      Adiabatic

    • D. 

      Isovolumetric

  • 3. 
      An ideal gas is compressed to one-half its original volume during an isothermal process.  The final pressure of the gas
    • A. 

      Increases to twice its original value

    • B. 

      Increases to less than twice its originial value

    • C. 

      Increases to more than twice its original value

    • D. 

      Does not change

  • 4. 
    • A. 

      ΔU = 0

    • B. 

      W = 0

    • C. 

      Q = 0

    • D. 

      None of the above

  • 5. 
      When the first law of thermodynamics, Q = ΔU + W, is applied to an ideal gas that is taken through an isovolumetric process
    • A. 

      ΔU = 0

    • B. 

      W = 0

    • C. 

      Q = 0

    • D. 

      None of the above

  • 6. 
    Is it possible to transfer heat from a cold reservoir to a hot reservoir?
    • A. 

      No

    • B. 

      Yes; this will happen naturally

    • C. 

      Yes, but work will have to be done.

    • D. 

      Theoretically yes, but it hasn't been accomplished yet.

  • 7. 
    The efficiency of a heat engine is defined as the ratio of  
    • A. 

      The heat input at the high temperature to the heat output at the low temperature

    • B. 

      The heat output at the low temperature to the heat input at the high temperature

    • C. 

      The work it does to the heat input at the high temperature

    • D. 

      The work it does to the heat output at the low temperature

  • 8. 
    A Carnot cycle consists of
    • A. 

      Two adiabats and two isobars

    • B. 

      Two isobars and two isotherms

    • C. 

      Two isotherms and two isomets

    • D. 

      Two adiabats and two isotherms

  • 9. 
    During an isothermal process, 5.0 J of heat is removed from an ideal gas.  What is the change in internal energy?
    • A. 

      Zero

    • B. 

      2.5 J

    • C. 

      5.0 J

    • D. 

      10 J

  • 10. 
      200 J of work is done in compressing a gas adiabatically.  What is the change in internal energy of the gas?
    • A. 

      Zero

    • B. 

      100

    • C. 

      200

    • D. 

      There is not enough information

  • 11. 
    A heat engine has an efficiency of 35.0% and receives 150 J of heat per cycle.  How much work does it perform in each cycle?
    • A. 

      Zero

    • B. 

      52.5 J

    • C. 

      97.5 J

    • D. 

      150 J