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Physicochemical parameters of the binary mixtures of formamide/N-methylformamide with 2-chloroethanol at different temperatures
Physics and Chemistry of Liquids ( IF 1.2 ) Pub Date : 2020-09-02 , DOI: 10.1080/00319104.2020.1815019
Mukesh Kumar 1 , Rajesh Kumar Tiwari 1 , Vikash Verma 1 , Anjali Awasthi 2 , Aashees Awasthi 1
Affiliation  

ABSTRACT

The pseudo-Gruneisen parameter Γ, effective Debye temperatureθD, acoustic nonlinearity parameter B/A, internal pressure Pin and isobaric thermal expansion coefficient α have been evaluated for binary liquid mixtures of formamide (FA) and N-methylformamide (NMF) with 2-chloroethanol (2Cl-OH) at 298.15 K, 308.15 K and 318.15 K, over the entire concentration range. The excess pseudo-Gruneisen parameter ΓE, excess effective Debye temperature θ DE, excess nonlinearity parameter(B/A)E, excess internal pressure P inEand excess isobaric thermal expansion coefficient αE were also calculated. The calculated values are reasonably satisfactory with the experimental results on sound propagation data of liquid mixtures. These physicochemical parameters play an important role in understanding of the significance of anharmonic and nonlinear behaviour with regard to intermolecular interactions in the liquid mixtures.



中文翻译:

甲酰胺/N-甲基甲酰胺与2-氯乙醇的二元混合物在不同温度下的理化参数

摘要

伪 Gruneisen 参数 Γ, 有效德拜温度θD, 声学非线性参数 /一种, 内压 一世n 和等压热膨胀系数 α已针对甲酰胺 (FA) 和 N-甲基甲酰胺 (NMF) 与 2-氯乙醇 (2Cl-OH) 在整个浓度范围内在 298.15 K、308.15 K 和 318.15 K 的二元液体混合物进行了评估。多余的伪 Gruneisen 参数Γ, 超有效德拜温度 θ D, 多余的非线性参数(/一种), 内部压力过大  一世n和过量的等压热膨胀系数 α也进行了计算。计算值与液体混合物声传播数据的实验结果相当令人满意。这些物理化学参数在理解液体混合物中分子间相互作用的非谐和非线性行为的重要性方面起着重要作用。

更新日期:2020-09-02
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