کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5413442 | 1506629 | 2007 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Ultrasonic velocity, viscosity, density and excess properties of binary mixture of dimethyl sulphoxide with propanoic acid and n-butyric acid
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
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چکیده انگلیسی
Ultrasonic velocity (u), viscosity (η) and density (Ï) have been measured for binary mixtures of dimethyl sulphoxide (DMSO) with propanoic acid (PA) and n-butyric acid (BA) at three temperature 293 K, 303 K and 313 K, over the entire range of composition. Deviation in isentropic compressibility ÎβS, deviation in viscosity Îη and excess free energy of activation for viscous flow ÎGâE have been calculated using experimental values of ultrasonic velocity (u), density (Ï) and viscosity (η). Deviation in isentropic compressibility (ÎβS) and viscosity (Îη) as well as excess free energy of activation for viscous flow (ÎGâE) were plotted against the mole fraction of DMSO over the entire composition range. The values of ÎβS have been found to be negative whereas the values of ÎGâE and Îη were positive for both the mixtures over the entire composition range. The strength and the nature of interaction between the molecules of DMSO with propanoic acid and n-butyric acid have been discussed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Liquids - Volume 135, Issues 1â3, 31 July 2007, Pages 166-169
Journal: Journal of Molecular Liquids - Volume 135, Issues 1â3, 31 July 2007, Pages 166-169
نویسندگان
Vijay Kumar Misra, Isht Vibhu, Rahul Singh, Manisha Gupta, J.P. Shukla,