Chemical Exergy Values of Compounds

The first term on the right-hand side of this equation is the standard Gibbs energy of formation of methane, which is listed [2] as -50.460 kj/mol and thus EXch,cH4(g) can be calculated to be 831.6 kj/mol. Chapter 9 illustrates the use of this exergy value in the analysis of a natural gas-driven power station. 

In general, we can calculate the standard chemical exergy of a component from the standard chemical exergy of its elements with the equation 

Finally, Table 7.4 gives the standard exergy values of a selected number of compounds that are relevant for the examples and topics presented in this book. 

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Table 7.3 is useful for the calculation of the standard chemical exergy values of compounds. We illustrate this for methane and start from its hypothetical formation reaction at standard conditions ... 

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