[Pw_forum] About the relationship between enthalpy and pressure.

[Stefano de Gironcoli]

Pressure is the thermodynamical variable upon which enthalpy depends

If you know  E(V) you can define H(P) = min_V ( E(V) + P V )

Have a look in a book of thermodynamics.

stefano



Hongsheng Zhao wrote:
> Dear PWSCF users,
>
> We all know that, the pressure-Volume, and energy--Volume curve can be obtained by fitting of EOS.  But what's the relationship between enthalpy and pressure?  
>
> Best regards.
>   
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