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dc.contributor.authorGlasser, Leslie
dc.date.accessioned2022-05-10T04:49:35Z
dc.date.available2022-05-10T04:49:35Z
dc.date.issued2022
dc.identifier.citationGlasser, L. 2022. The cohesive entropy of condensed materials, empirical relations and restrictions. Journal of Chemical Thermodynamics. 169: ARTN 106760.
dc.identifier.urihttp://hdl.handle.net/20.500.11937/88438
dc.identifier.doi10.1016/j.jct.2022.106760
dc.description.abstract

Entropy factors of a material are connected through an equation which relates three independent experimental values specific to each material: ΔfS=S-∑inSatoms,i. (Note: our results refer to independently summed ∑1nSatoms,i values rather than calculation by simple difference of the third dependent value from the other two of these values.) We define the cohesive entropy coefficient, αScoh, through ΔfS=α∑inSatoms,i. Having ready access to a large database of thermodynamic data for solid ionic materials from earlier studies, we have investigated the generalisations that may be made among these entropy quantities for this group of materials. We find that the data points of this three-dimensional system are confined to a fan-shaped tilted plane which has rather strict lateral limits, with the upper limits controlled by the entropies of gaseous elements and the lower limits by the entropies of solid elements. This has the consequence of providing insight into the understanding of entropy values and their limits as a check on experimental determinations. In particular, formation and standard entropies for condensed phases are shown to be proportional to one another with a fixed proportionality constant, the cohesive entropy coefficient, αScoh = -0.831. Evidence is provided that the same restrictions apply to condensed organic materials, and we suggest that these entropy relations are applicable to condensed materials in general.

dc.languageEnglish
dc.publisherACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
dc.subjectScience & Technology
dc.subjectPhysical Sciences
dc.subjectThermodynamics
dc.subjectChemistry, Physical
dc.subjectChemistry
dc.subjectORGANIC-SUBSTANCES
dc.subjectVALUES
dc.titleThe cohesive entropy of condensed materials, empirical relations and restrictions
dc.typeJournal Article
dcterms.source.volume169
dcterms.source.issn0021-9614
dcterms.source.titleJournal of Chemical Thermodynamics
dc.date.updated2022-05-10T04:49:34Z
curtin.departmentSchool of Molecular and Life Sciences (MLS)
curtin.accessStatusIn process
curtin.facultyFaculty of Science and Engineering
curtin.contributor.orcidGlasser, Leslie [0000-0002-8883-0564]
curtin.contributor.researcheridGlasser, Leslie [F-3266-2011]
curtin.identifier.article-numberARTN 106760
dcterms.source.eissn1096-3626
curtin.contributor.scopusauthoridGlasser, Leslie [7005562553]


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