2种标准摩尔反应熵的关系  

Relationship Between Two Kinds of Standard Molar Entropy of Reaction

作　　者：朱元海[1] 范森[2] 关秋红 ZHU Yuan-Hai;FAN Sen;GUAN(College of Chemistry and Chemical Engineering,Northeast Petroleum University,Daqing 1633188,China;College of Petroleum Engineering,Northeast Petroleum University,Daqing 163318,China;International Co-operation Office,Northeast Petroleum University,Daqing 163318,China)

机构地区：[1]东北石油大学化学化工学院,黑龙江大庆163318 [2]东北石油大学石油工程学院,黑龙江大庆163318 [3]东北石油大学国际合作处,黑龙江大庆163318

出　　处：《化学教育（中英文）》2019年第12期85-87,共3页Chinese Journal of Chemical Education

摘　　要：研究认为以温度和浓度为自变量的摩尔反应熵ΔrSm(c)实质是定容摩尔反应熵,因而不能用偏摩尔量定义,它与相应的定压摩尔反应熵ΔrSm(p)即使在同一状态点数值也不相等。通过严格数学处理得到了c■和p■2种标准态下摩尔反应熵之间的关系,结果与现有文献不同。文中还推导了其他相关标准态摩尔反应热力学函数间的关系,并通过相互关联和转换印证了本文结论的正确性。Investigation shows thatΔrSm(T,c)is actually the molar entropy of reaction at constant volume,which can not be defined by partial molar entropy,andΔ_rS_m(T,c)andΔrSm(p)are not equal even at the same state.A new relation between two kinds of standard molar entropies of reaction at c■ and p■,which is different from the widely accepted in textbooks and papers,is deduced through strict mathematical treatment.Other related standard molar thermodynamic functions of reaction are also presented and used to confirm the new results.

关 键 词：活化熵 标准摩尔反应熵 标准态 齐次函数 

分 类 号：O643[理学—物理化学]