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## Comparative Study between Cubic and non-Cubic Equations of State Using Carnahan-Starling Repulsive Term: Application of Temperature-Dependent Alpha and Beta Functions

#### Ricardo Checoni [1] , Martin Aznar [2]

##### 209 501

Studies on phase equilibria data behavior of pure substances are motivation to the researchers due to importance of these data for the scientific and industrial applications. Several EOS were proposed and its modifications have been made, whose aim is to improve the correlation between experimental and calculated thermophysical properties. This work proposes a comparative study between the PVT calculated data using cubic and non-cubic equations of state, in which its original repulsive term is substituted by the Carnahan-Starling hard-sphere repulsive term; furthermore, generalized expression to calculate (Tr,) and (Tr,) functions are used. Experimental data of vapor pressure for various pure compounds were compared to the calculated vapor pressure data showing satisfactory agreement, when this proposed modification is employed.
Equation of state; generalized alpha and beta functions; modeling; pure compounds
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Primary Language en Regular Original Research Article Author: Ricardo Checoni Author: Martin Aznar Publication Date: February 1, 2014
 Bibtex @ { ijot77015, journal = {International Journal of Thermodynamics}, issn = {1301-9724}, eissn = {2146-1511}, address = {Uluslararası Uygulamalı Termodinamik Derneği İktisadi İşletmesi}, year = {2014}, volume = {17}, pages = {21 - 26}, doi = {}, title = {Comparative Study between Cubic and non-Cubic Equations of State Using Carnahan-Starling Repulsive Term: Application of Temperature-Dependent Alpha and Beta Functions}, key = {cite}, author = {Checoni, Ricardo and Aznar, Martin} } APA Checoni, R , Aznar, M . (2014). Comparative Study between Cubic and non-Cubic Equations of State Using Carnahan-Starling Repulsive Term: Application of Temperature-Dependent Alpha and Beta Functions. International Journal of Thermodynamics, 17 (1), 21-26. Retrieved from http://dergipark.org.tr/ijot/issue/5791/77015 MLA Checoni, R , Aznar, M . "Comparative Study between Cubic and non-Cubic Equations of State Using Carnahan-Starling Repulsive Term: Application of Temperature-Dependent Alpha and Beta Functions". International Journal of Thermodynamics 17 (2014): 21-26 Chicago Checoni, R , Aznar, M . "Comparative Study between Cubic and non-Cubic Equations of State Using Carnahan-Starling Repulsive Term: Application of Temperature-Dependent Alpha and Beta Functions". International Journal of Thermodynamics 17 (2014): 21-26 RIS TY - JOUR T1 - Comparative Study between Cubic and non-Cubic Equations of State Using Carnahan-Starling Repulsive Term: Application of Temperature-Dependent Alpha and Beta Functions AU - Ricardo Checoni , Martin Aznar Y1 - 2014 PY - 2014 N1 - DO - T2 - International Journal of Thermodynamics JF - Journal JO - JOR SP - 21 EP - 26 VL - 17 IS - 1 SN - 1301-9724-2146-1511 M3 - UR - Y2 - 2019 ER - EndNote %0 International Journal of Thermodynamics Comparative Study between Cubic and non-Cubic Equations of State Using Carnahan-Starling Repulsive Term: Application of Temperature-Dependent Alpha and Beta Functions %A Ricardo Checoni , Martin Aznar %T Comparative Study between Cubic and non-Cubic Equations of State Using Carnahan-Starling Repulsive Term: Application of Temperature-Dependent Alpha and Beta Functions %D 2014 %J International Journal of Thermodynamics %P 1301-9724-2146-1511 %V 17 %N 1 %R %U ISNAD Checoni, Ricardo , Aznar, Martin . "Comparative Study between Cubic and non-Cubic Equations of State Using Carnahan-Starling Repulsive Term: Application of Temperature-Dependent Alpha and Beta Functions". International Journal of Thermodynamics 17 / 1 (February 2014): 21-26. AMA Checoni R , Aznar M . Comparative Study between Cubic and non-Cubic Equations of State Using Carnahan-Starling Repulsive Term: Application of Temperature-Dependent Alpha and Beta Functions. International Journal of Thermodynamics. 2014; 17(1): 21-26. Vancouver Checoni R , Aznar M . Comparative Study between Cubic and non-Cubic Equations of State Using Carnahan-Starling Repulsive Term: Application of Temperature-Dependent Alpha and Beta Functions. International Journal of Thermodynamics. 2014; 17(1): 26-21.