An efficient reliable method to estimate the vaporization enthalpy of pure substances according to the normal boiling temperature and critical properties

The heat of vaporization of a pure substance at its normal boiling temperature is a very important property in many chemical processes. In this work, a new empirical method was developed to predict vaporization enthalpy of pure substances. This equation is a function of normal boiling temperature, c...

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Main Authors: Babak Mehmandoust, Ehsan Sanjari, Mostafa Vatani
Format: Article
Language:English
Published: Elsevier 2014-03-01
Series:Journal of Advanced Research
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2090123213000386
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author Babak Mehmandoust
Ehsan Sanjari
Mostafa Vatani
author_facet Babak Mehmandoust
Ehsan Sanjari
Mostafa Vatani
author_sort Babak Mehmandoust
collection DOAJ
description The heat of vaporization of a pure substance at its normal boiling temperature is a very important property in many chemical processes. In this work, a new empirical method was developed to predict vaporization enthalpy of pure substances. This equation is a function of normal boiling temperature, critical temperature, and critical pressure. The presented model is simple to use and provides an improvement over the existing equations for 452 pure substances in wide boiling range. The results showed that the proposed correlation is more accurate than the literature methods for pure substances in a wide boiling range (20.3–722 K).
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spelling doaj.art-df88ae9813014ebe964540d4a33434b72022-12-21T23:12:46ZengElsevierJournal of Advanced Research2090-12322090-12242014-03-015226126910.1016/j.jare.2013.03.007An efficient reliable method to estimate the vaporization enthalpy of pure substances according to the normal boiling temperature and critical propertiesBabak MehmandoustEhsan SanjariMostafa VataniThe heat of vaporization of a pure substance at its normal boiling temperature is a very important property in many chemical processes. In this work, a new empirical method was developed to predict vaporization enthalpy of pure substances. This equation is a function of normal boiling temperature, critical temperature, and critical pressure. The presented model is simple to use and provides an improvement over the existing equations for 452 pure substances in wide boiling range. The results showed that the proposed correlation is more accurate than the literature methods for pure substances in a wide boiling range (20.3–722 K).http://www.sciencedirect.com/science/article/pii/S2090123213000386EnthalpyVaporizationCorrelationPure substancesNormal boiling temperature
spellingShingle Babak Mehmandoust
Ehsan Sanjari
Mostafa Vatani
An efficient reliable method to estimate the vaporization enthalpy of pure substances according to the normal boiling temperature and critical properties
Journal of Advanced Research
Enthalpy
Vaporization
Correlation
Pure substances
Normal boiling temperature
title An efficient reliable method to estimate the vaporization enthalpy of pure substances according to the normal boiling temperature and critical properties
title_full An efficient reliable method to estimate the vaporization enthalpy of pure substances according to the normal boiling temperature and critical properties
title_fullStr An efficient reliable method to estimate the vaporization enthalpy of pure substances according to the normal boiling temperature and critical properties
title_full_unstemmed An efficient reliable method to estimate the vaporization enthalpy of pure substances according to the normal boiling temperature and critical properties
title_short An efficient reliable method to estimate the vaporization enthalpy of pure substances according to the normal boiling temperature and critical properties
title_sort efficient reliable method to estimate the vaporization enthalpy of pure substances according to the normal boiling temperature and critical properties
topic Enthalpy
Vaporization
Correlation
Pure substances
Normal boiling temperature
url http://www.sciencedirect.com/science/article/pii/S2090123213000386
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