Total phase change entropies and enthalpies. An update on fusion enthalpies and their estimation

James S. Chickos, William E. Acree

Research output: Contribution to journalArticlepeer-review

Abstract

This compendium summarizes the fusion enthalpies of approximately 1000 new measurements. A group additivity method developed to estimate the total phase change entropies and enthalpies of organic solids is updated, applied to the new data and the results are compared. The uncertainties associated with the 1016 new measurements, ±18.5 J mol −1  K −1  and ±7.6 kJ mol −1  for total phase change entropies and enthalpies, respectively, are similar in magnitude to those reported previously. Experimental and estimated fusion entropies and fusion enthalpies along with references are available as supplementary material.
Original languageAmerican English
JournalThermochimica Acta
Volume495
DOIs
StatePublished - Jan 11 2009

Keywords

  • Fusion enthalpy
  • Total phase change enthalpy
  • Total phase change entropy
  • usion entropy

Disciplines

  • Thermodynamics
  • Physical Chemistry

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