元素的自由能－电势图及其应用陈佐勤（河北师范学院化学系，石家庄０５００９１）电极反应中，氧化态发生变化的元素称为可变元素，氧化态不发生变化的元素称为非可变元素；含有可变元素的个体称为可变个体，不含有可变元素的个体称为非可变个体。自由能－氧化态图（以下... Element Free Energy - Potential Graph and Its Application CHEN Zuo-Qin (Department of Chemistry, Hebei Normal University, Shijiazhuang 050091) In the electrode reaction, the element whose oxidation state changes is called variable element and the element whose oxidation state does not change is called non-variable element ; Individuals with variable elements are called mutable individuals and individuals that do not have mutable elements are called non-mutable individuals. Free energy - oxidation state diagram (following ...