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Correct Regression Formula Used in determination of Vaporization Enthalpy of Pure Liquids by UV-Visible Spectroscopy
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Abstract
A recent paper by G. Marin-Puga, M. Guzman L., and F. Hevia [J. Chem. Educ. 1995, 72, 91] attracted my attention. A wrong regression formula was used in the paper to determine the vaporization enthalpy. The expression for the proportionality constant that relates the absorbance of the vapor with the vapor pressure was also wrongly derived. This prompted me to submit this short paper to clarify both points.
Keywords (Audience):
Second-Year UndergraduateKeywords (Subject):
UV-Vis SpectroscopyCiting Articles
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This article has been cited by 1 ACS Journal articles (1 most recent appear below).
Isothermogravimetric Determination of the Enthalpies of Vaporization of 1-Alkyl-3-methylimidazolium Ionic Liquids
Huimin Luo, Gary A. Baker and Sheng DaiThe Journal of Physical Chemistry B2008 112 (33), 10077-10081Isothermogravimetric Determination of the Enthalpies of Vaporization of 1-Alkyl-3-methylimidazolium Ionic Liquids
Huimin Luo, Gary A. Baker and Sheng DaiThe Journal of Physical Chemistry B2008 112 (33), 10077-10081Vaporization enthalpies for two series of ionic liquids (ILs) composed of 1-n-alkyl-3-methylimidazolium cations, [Imm1+] (m = 2, 3, 4, 6, 8, or 10), paired with either the bis(trifluoromethanesulfonyl)amide, [Tf2N−], or the bis(perfluoroethylsulfonyl)...
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- Received: August 03, 2009
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