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I Why we use enthalpy when we calculate latent heat?

  1. May 11, 2017 #1
    Why we use enthalpy(h) instead of internal energy(u) when we consider latent heat?
     
  2. jcsd
  3. May 11, 2017 #2

    BvU

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    Because a phase change is generally accompanied by a volume change and therefore involves pV work as well.

    [edit] I notive you haven't had the customary

    Hello seungwoo, :welcome:

    So here it is, albeit belated !
     
    Last edited: May 11, 2017
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