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Test in physics in school tomorrow

  1. May 31, 2004 #1
    Hi
    I'm having a test in physics in school tomorrow and would need some help on the following problem:

    Two fluids with knows temperatures and known capacity (or whatever it is called. C anyway) are poured together and after a while they have the same temperature.
    How can one calculate that temperature?

    Thanks in advance.
    //Freidrichen
     
    Last edited: May 31, 2004
  2. jcsd
  3. May 31, 2004 #2
    First calculate the total energy, which is the sum of [tex]T \times C[/tex] for each fluid. Then you say that they end up with the same temperature so you have to solve
    [tex] E = T ( C_1 + C_2 )[/tex]

    where E is the total energy and the C's are the two heat capacities and here T is the temperature they end up at (which you are trying to determine).

    Matt
     
  4. May 31, 2004 #3
    Ok
    Thanks alot!!

    //Freidrichen
     
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