Modeling of thermodynamic properties of an oxygenate+aromatic hydrocarbon: Excess molar enthalpy

Suman Gahlyan, Manju Rani, Sanjeev Maken, Hweeung Kwon, Kyungjae Tak, Il Moon

Research output: Contribution to journalArticlepeer-review

32 Citations (Scopus)


Excess molar enthalpy (HmE) have been measured at 303.15K 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≈0.3. At (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<0.5, agreement with experimental values is reasonably good thereafter. The HmE values calculated by Graph theory compared well with the corresponding experimental values.

Original languageEnglish
Pages (from-to)299-306
Number of pages8
JournalJournal of Industrial and Engineering Chemistry
Publication statusPublished - 2015 Mar 25

Bibliographical note

Funding Information:
Suman Gahlyan thanks the University Grant Commission, New Delhi for the award of Junior Research Fellowship.

Publisher Copyright:
© 2014 The Korean Society of Industrial and Engineering Chemistry.

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)


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