A.G=U+PV B.H=G+TS C.H=G-TS D.H=U-TS
A.dG=-SdT+VdP B.dG=+d(PV)-TdS C.dG=TdS+VdP D.dG=-SdT-PdV
A.dF=-SdT-PdV B.dF=dU-TdS C.dF=dG-VdP D.dF=dG-PdV