The linear relationship between the gas phase standard enthalpies of formation and the substituent constants is discussed.
讨论了气态摩尔标准生成焓与取代基常数间的线性关系。
Standard enthalpies of formation of simple substances have been discussed in current textbooks. A more exact definition has been proposed.
讨论分析了现行教材中关于单质标准生成焓的规定，提出了较严谨的定义；
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