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Quick physical chemistry question

  1. Sep 26, 2009 #1
    Calculate the final temperature of a sample of carbon dioxide of mass 16.0g that is
    expanded reversibly and adiabatically from 500mL at 298,15K to 2.00L.

    I know the answer and understand how to do the problem except for 1 part.

    The equation to get the solution is : Tf = Ti (Vi/Vf)^(1/c)

    The part I cannot figure out is how to find c. I know c = Cv,m/R = 3.463, but when I try to calculate c I get something other than 3.463.
     
  2. jcsd
  3. Sep 26, 2009 #2
    nevermind, it turns out that some information needed to make the calculation is contained in the back of the book, so I figured it out.
     
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