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Adiabat Process - with pV cycle

  1. Apr 17, 2012 #1
    1. The problem statement, all variables and given/known data

    A heat engine uses 2 mole of a diatomic gas that follows the pV cycle shown, how much work is done, over the cycle if P=100kPa, T1=207K


    Phys.jpg
    * P is suppose to be 0.5P this was a typo on the graph


    This is what i've figured out so far: (if i am incorrect on anything please let me know)

    W1→2 = 0

    W2→3=nRΔT
    So it would look like:
    (2)(5/2)(8.31)(?-207)
    The problem is i can't figure out how to find the other tempurature

    W3→1=nRTln(v2/v1)
    So it would look like this
    (2)(8.31)(207)ln(?/?)
    I don't understand how to get the volumes in this problem all the other problems i have had have given me a volume.
     
  2. jcsd
  3. Apr 17, 2012 #2
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