指出火用本性上不是严格意义上的状态函数，给出了在无限大环境参考态下多相系统火用函数一般表达式。

That exergy is not a state function was specified. A general theoretical expression of exergy was obtained by extending its applications to special systems, like heat reservoirs and matter reservoirs.

youdao

OK, so, the thing about a state function is that the function has a value for initial conditions and at final conditions.

态函数的特点是,在初始状态有一个值,在末状态也有一个值。

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