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首页> 外文期刊>Russian Journal of Physical Chemistry >Enthalpies of Mixing and Intermolecular Interactions in N,N-Dimethylformamide-Chloroform Systems at Temperatures Ranging between 288 and 308 K
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Enthalpies of Mixing and Intermolecular Interactions in N,N-Dimethylformamide-Chloroform Systems at Temperatures Ranging between 288 and 308 K

机译:N,N-二甲基甲酰胺-氯仿体系中288和308 K之间的混合焓和分子间相互作用

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摘要

The thermal effects of N,N-dimethylformamide (DMF) and chloroform (ChF) dissolution in the ChF-DMF system are calorimetrically determined at 288, 298, and 308 K over the range of compositions. The partial molar enthalpies of the components are also calculated, along with the values for the enthalpies of mixing. It is found that mixing is a strongly exothermic process and depends only slightly on temperature. The enthalpy parameters of double and triple interactions between DMF molecules in ChF, and between ChF molecules in DMF, are determined using virial expansions.
机译:在组成范围内,量热法在288、298和308 K上量热确定了ChF-DMF系统中N,N-二甲基甲酰胺(DMF)和氯仿(ChF)溶解的热效应。还计算组分的部分摩尔焓,以及混合焓的值。发现混合是强烈放热的过程,并且仅轻微地取决于温度。使用病毒扩增确定ChF中DMF分子之间以及DMF中ChF分子之间的两次和三次相互作用的焓参数。

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