Conventions Berman-Brown

Both the Benson-Helgeson and Berman-Brown conventions are in common use at the present time. Both are far more sensible than what we have called the standard formation from the elements convention, but there is little to choose between them. Hopefully, one will become dominant in the near future. 

We mentioned in Chapter 3 the two conventions used to define apparent properties, which are used as a form of formation from the element properties at temperatures above 298.15 K. The Benson-Helgeson convention was described there. The Berman-Brown convention, although the same for AH°, is different for AG°. 

In the Berman-Brown convention, the apparent Gibbs energy, A G°, is defined as... 

If you integrate Equation (5.31) using both the Berman and Brown (1985) heat capacity Equation (3.28) and the Berman-Brown convention for A G°, you find... 

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