但一般对一个热力学体系，它总是足够大的，这正是热力学要表述的。
But usually if you have a thermodynamic system, then it's big enough. That's what thermodynamics is about.
原因在于，我们待会就会看到，这个求和可以推导，任何一个体系的宏观热力学量，得到结果之后。
And the reason is, as we'll see shortly, it turns out that every single macroscopic thermodynamic function can be Derived by knowing just that.
利用化学势的概念，导出气相、液相和复相化学反应体系的热力学平衡常数表示式。
Thermodynamic equilibrium constants of chemical reactions which involve gaseous phases condensed phases and complex phases are strictly deduced in terms of chemical potential.
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