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DH=Cp dT always?

  1. Dec 29, 2014 #1

    kelvin490

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    Gold Member

    For an ideal gas, the internal energy is a function only of temperature, so that dU = CvdT can always be applied. I am not sure whether dH=CP dT is also always true even the pressure is not constant.
     
  2. jcsd
  3. Dec 29, 2014 #2
    For an ideal gas, it is. dH = dU + d(pV) = dU + RdT=(Cv+R)dT

    Chet
     
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