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Average specific heats

  1. Apr 30, 2017 #1

    I have been refreshing my fundamentals. Average specific heats are confusing for me. Why they are average? Are there different values for them so the averages are taken? Would you please explain this?

    Source: Fluid Mechanics Fundamentals and Applications by Çengel/Boles.
    Thank you.
  2. jcsd
  3. Apr 30, 2017 #2


    Staff: Mentor


    Sure, many materials have specific heat values that change with temperature. The one above is for diamond.
  4. Apr 30, 2017 #3
    How can scientists measure these values? I think it should be very hard process.

    Thank you.
  5. Apr 30, 2017 #4
    Read about Joule's experiments.
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