吉布斯——亥姆霍斯方程在电化学中的应用

Application of Gibbs-Helmholts' Equation in Electrochemistry

热力学中Gibbs-Helmholts方程,简称G-H方程(△G=△H-T△S)与化学过程的△G=-nEF相结合得出原电池G-H方程:△H=-nEF+nFT(ET)p.其作用体现在:通过简易、准确的电化学测量方法获得若干可靠的热力学函数的变量,但是,该方程的应用具有条件性,该条件可以从G-H方程的热力学推导过程中获得。

The combination of Gibbs-Helmholts equation △G=△H-T△S in thermodynamics and △G=-nEF of electrochemical process produces △H=-nEF+nFTp. Certain reliable thermodynamic funcfion variables could be obtained with simple and precise electrochemical measurement. But the application of the equation is with condition, which can be got from the process of thermodynamic derivation.