کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
226818 | 464807 | 2015 | 8 صفحه PDF | دانلود رایگان |
• The HmE data of 1-propanol + aromatic hydrocarbons were measured using flow microcalorimeter.
• Measured HmE data of 1-propanol + aromatic hydrocarbons were interpreted in terms of Graph theory and PFP theory.
• The calculated HmE (PFP) values compared reasonably well with experimental data for x1>0.5.
• The experimental HmE data compared well with their Graph theory values.
• The experimental HmE data were correlated with Redlich–Kister polynomial.
Excess molar enthalpy (HmE) have been measured at 303.15 K for 1-propanol + benzene or toluene or o- or m- or p -xylene mixtures using flow micro calorimeter. The HmE versus x1 plots are skewed toward y -axis showing maxima at x1≈0.3x1≈0.3. At (x1=0.5)(x1=0.5)HmE vary in the order: toluene < benzene < m-xylene < p-xylene ∼ o -xylene. The excess volume data have also been interpreted in terms of Graph-theoretical approach and Prigogine–Flory–Patterson theory. It has been observed that while PFP theory fails to predict the HmE values for these systems in the composition range x1<0.5x1<0.5, agreement with experimental values is reasonably good thereafter. The HmE values calculated by Graph theory compared well with the corresponding experimental values.
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Journal: Journal of Industrial and Engineering Chemistry - Volume 23, 25 March 2015, Pages 299–306