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Specific Heats and Temperature

  1. Aug 3, 2009 #1

    Nabeshin

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    I understand the the specific heat capacity of a material is a function of temperature.

    Does anyone know of either a site (or reference) which has a large list of specific heat capacities for varying temperatures (large variety of temperatures is preferable to a large variety of materials), or a general relation between specific heat capacity and temperature? My interest is primarily on the higher bound of temperature, likely in the range of high hundreds to possibly mid thousands of kelvin, so if the specific heat capacities converged to some limit or something around that value, that would be great.
     
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  3. Aug 3, 2009 #2

    Mapes

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    Check Touloukian et al, Thermophysical Properties of Matter (1970) (New York: IFI/Plenum) for measured value vs. temperature.

    Most metals have a molar heat capacity of 3R at room temperature (about 25 J mol-1 K-1), and most or all solid elements converge to this value at high temperatures. Simple compounds often have a heat capacity varying broadly around 3R per atom (e.g., NaCl, 50 J mol-1 K-1; as an ionic crystal, particularly close). This is a consequence of the energy-storing capacity of atoms in a crystal and is modeled/explained by the field of statistical mechanics.
     
    Last edited: Aug 3, 2009
  4. Aug 3, 2009 #3
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