| 关于两种活化熵△_r~≠S_m~φ(c~φ)和△_r~≠S_m~φ(P~φ)的讨论 |
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| 引用本文： | 张德生,郭畅. 关于两种活化熵△_r~≠S_m~φ(c~φ)和△_r~≠S_m~φ(P~φ)的讨论[J]. 安庆师范学院学报(自然科学版), 2006, 0(4) |
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| 作者姓名： | 张德生 郭畅 |
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| 作者单位： | 安庆师范学院化学与化工学院 安徽安庆246011 |
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| 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。
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| 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 |
Discussion on Two Kinds of Entropy of Activation |
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| ZHANG De-sheng,GUO Chang. Discussion on Two Kinds of Entropy of Activation[J]. Journal of Anqing Teachers College(Natural Science Edition), 2006, 0(4) |
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| Authors: | ZHANG De-sheng GUO Chang |
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| 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. |
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| Keywords: | transition state theory chemical potential standard state Gibbs free energy of activation enthalpy of activation entropy of activation |
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