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Topic: General Enthalpy question  (Read 3684 times)

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Offline unleash10

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General Enthalpy question
« on: October 10, 2007, 08:57:34 PM »
What was the purpose of defining a new variable H??
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Offline Yggdrasil

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Re: General Enthalpy question
« Reply #1 on: October 10, 2007, 10:20:03 PM »
It is more convenient to work with H at fixed pressures because when the pressure of your system is fixed q = ΔH.  In contrast, if the volume of your system is fixed, then internal energy is the convenient variable because q = ΔU.
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