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Finding molecular weight from specific heat at constant volume

  1. Jan 17, 2010 #1
    The specific heat at constant volume of an unknown solid is measured at high temperature to be 319.5Jkg-1K-1. Estimate its molecular weight.



    Cv=3R




    Attempt.
    I used the above equation to get a mass of the solid to be 0.0128kg but I have no idea of what to do next!
     
  2. jcsd
  3. Jan 18, 2010 #2

    Mapes

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    How did you calculate this? (Please include your units.)
     
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