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Homework Help: On a P-V diagram, if the pressure stays constant and the volume

  1. Oct 10, 2011 #1
    On a P-V diagram, if the pressure stays constant and the volume increases, what happens to the temperature?

    Does it increase, decrease, or stay the same?
     
  2. jcsd
  3. Oct 10, 2011 #2
    Re: Thermodynamics

    Assuming an ideal gas you can look at polytropic relations where P*V**n = constant.

    This leads to T2/T1 = (V1/V2)**(n-1)

    What do you know about n for an isobaric process?
     
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