About: Thermodynamic study of alkane-α,ω-diamines - evidence of odd-even pattern of sublimation properties     Goto   Sponge   NotDistinct   Permalink

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  • Calculated ideal-gas heat capacities and experimental data for vapor pressure, condensed phase heatcapacities, and calorimetric vaporization enthalpies of alkane-diamines, NH2-(CH2)n-NH2(2n8), were treated simultaneously to obtain a consistent thermodynamic description. Vapor pressures were measured using the static method in the temperature range from 233 to 314 K. The thermodynamic properties for liquid–vapor equilibrium display a linear dependence on number of methylene groups n while the sublimation thermodynamic properties show an evident odd–even effect with higher values for even members of a homologous series. Based on the observed trends, the correlations allowing the prediction of the thermodynamic properties for the crystal–vapor and liquid–vapor equilibria and crystalline and ideal-gas heat capacities within the homologous series are suggested.
  • Calculated ideal-gas heat capacities and experimental data for vapor pressure, condensed phase heatcapacities, and calorimetric vaporization enthalpies of alkane-diamines, NH2-(CH2)n-NH2(2n8), were treated simultaneously to obtain a consistent thermodynamic description. Vapor pressures were measured using the static method in the temperature range from 233 to 314 K. The thermodynamic properties for liquid–vapor equilibrium display a linear dependence on number of methylene groups n while the sublimation thermodynamic properties show an evident odd–even effect with higher values for even members of a homologous series. Based on the observed trends, the correlations allowing the prediction of the thermodynamic properties for the crystal–vapor and liquid–vapor equilibria and crystalline and ideal-gas heat capacities within the homologous series are suggested. (en)
Title
  • Thermodynamic study of alkane-α,ω-diamines - evidence of odd-even pattern of sublimation properties
  • Thermodynamic study of alkane-α,ω-diamines - evidence of odd-even pattern of sublimation properties (en)
skos:prefLabel
  • Thermodynamic study of alkane-α,ω-diamines - evidence of odd-even pattern of sublimation properties
  • Thermodynamic study of alkane-α,ω-diamines - evidence of odd-even pattern of sublimation properties (en)
skos:notation
  • RIV/68378271:_____/14:00440781!RIV15-AV0-68378271
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  • RIV/68378271:_____/14:00440781
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  • alkane-diamines; odd–even effect; vapor pressure; sublimation and vaporization thermodynamic properties; statistical thermodynamics (en)
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  • NL - Nizozemsko
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  • [420325F91A6D]
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  • Fluid Phase Equilibria
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  • 371
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  • Fulem, Michal
  • Bazyleva, A.
  • Růžička, K.
  • Červinka, C.
  • Della Gatta, G.
http://linked.open...ain/vavai/riv/wos
  • 000336474100010
issn
  • 0378-3812
number of pages
http://bibframe.org/vocab/doi
  • 10.1016/j.fluid.2014.03.013
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