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Onsager Heat of Transport at the Liquid-Vapour Interface of Glycerol-Water Solutions

The Onsager heat of transport, Q*, has been measured for water vapour above glycerol-water solutions (75 % to 94.5 % glycerol) over a temperature range of -46 to -32 ℃. For solutions of concentrations 80 % and above, Q* varied from 5.41 kJ mol-1 ± 0.97 to 17.37 kJ mol-1 ± 2.61, consistent with previous results for aniline and n-heptanol. The dissociation of glycerol-water complexes was not rate determining, as was the case for sulfuric acid-water solutions, and therefore the glycerol-water system is a better two component system analog for comparison with the CO2-water system than the sulfuric acid-water system.

Identiferoai:union.ndltd.org:ADTP/273746
Date January 2007
CreatorsJames, Ronald Arthur
PublisherUniversity of Canterbury. Chemistry
Source SetsAustraliasian Digital Theses Program
LanguageEnglish
Detected LanguageEnglish
RightsCopyright Ronald Arthur James, http://library.canterbury.ac.nz/thesis/etheses_copyright.shtml

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