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醇类在苯及对二甲苯中过量焓预测
引用本文:裘利言,姚惟馨.醇类在苯及对二甲苯中过量焓预测[J].化学研究与应用,1996,8(2):232-235.
作者姓名:裘利言  姚惟馨
作者单位:南京化工学院应用化学系
摘    要:醇类在苯及对二甲苯中过量焓预测裘利言,姚惟馨(南京化工学院应用化学系南京210009)关键词醇,芳烃,缔合,过量焓含醇体系的热力学性质研究近来十分活跃。通常文献所报道的醇-芳烃体系中醇的摩尔分数x_A在0.1~0.9,而对于极稀溶液区有关报道很少。这...

关 键 词:  芳烃  缔合    

PREDICTION OF EXCESS ENTHALPIES OF ALCOHOL AND BENZENE OR P-XYLENE
Qiu Liyan,Yao Weixin.PREDICTION OF EXCESS ENTHALPIES OF ALCOHOL AND BENZENE OR P-XYLENE[J].Chemical Research and Application,1996,8(2):232-235.
Authors:Qiu Liyan  Yao Weixin
Abstract:With association equilibrium constants k_A from freezing point depression and Wiehe-Bagley model the excess enthaplies for alcohol and benzene or p-xylene are predicted. The enthalpy of hydrogen bond h_A increases as the carbon numbers n_A of alcohols increase and is a constant after propanol. For the same alcohol h_A is larger in benzene than in p-xylene. The change of molar enthalpies at infinite dilution has similar properdes to h_A There is a linear relationship between ln k_A and In h_A.
Keywords:alcohols  aromatic hydrocarbon  enthalpy  
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