节点文献
关于两种活化熵△_r~≠S_m~φ(c~φ)和△_r~≠S_m~φ(P~φ)的讨论
Discussion on Two Kinds of Entropy of Activation
【摘要】 用热力学方法处理过渡状态理论的艾林方程,选择两种不同参考点作为标准态,得出两个不同的计算公式,两种类型的活化自由能、活化焓、活化熵意义数值不同,对于理想气体的反应,两种类型的活化焓相等,活化熵不等,但两种活化熵之间存在定量关系式:△_r~≠S_m~φ(P~φ)=△_r~≠S_m~φ(c~φ)+(n-1)R1n(P~φ)/RTc~φ。
【Abstract】 By two distinct standard states,different expressions calculating rate coefficient of reaction can be deduced from Eyring equation in transition state theory with thermodynamic method.In such conditions,the meanings and numbers of Gibbs free energy,entropy and enthalpy of activation are disparate.However for two kinds of enthalpy of activation,numeriacal value is equal.And it can be linked with the relation of △_r~≠S_m~φ(P~φ)=△_r~≠S_m~φ(c~φ)+(n-1)R1n(P~φ)/RTc~φ.
【关键词】 过渡状态理论;
化学势标准态;
活化自由能;
活化焓;
活化熵;
【Key words】 transition state theory; chemical potential; standard state; Gibbs free energy of activation; enthalpy of activation; entropy of activation;
【Key words】 transition state theory; chemical potential; standard state; Gibbs free energy of activation; enthalpy of activation; entropy of activation;
- 【文献出处】 安庆师范学院学报(自然科学版) ,Journal of Anqing Teachers College(Natural Science Edition) , 编辑部邮箱 ,2006年04期
- 【分类号】O643.1
- 【被引频次】3
- 【下载频次】152