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Can experiments select the configurational component of excess entropy?

2002/11/18 by S. Corezzi, Silvia Corezzi, Corezzi, Silvia +5
Chemical Engineering · Chemistry · Physics and Astronomy · #Disordered Systems and Neural Networks (cond-mat.dis-nn) #FOS: Physical sciences #Soft Condensed Matter (cond-mat.soft) #Thermodynamic properties of mixtures #cond-mat.dis-nn #cond-mat.soft #thermodynamics and calorimetric analyses

paper · pdf · doi:10.48550/arxiv.cond-mat/0211379

RevTeX4, 4 pages, 2 EPS figures

arxiv created 2002/11/18 · openalex publication_date 2002/11/18 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We introduce an experimental method of assessing the vibrational and configurational components of the excess entropy of a liquid over crystal, based on a joined investigation of dynamic and thermodynamic properties as a function of temperature and pressure. We analyze light scattering, dielectric, calorimetric and dilatometric measurements of three prototype glass formers, orthoterphenyl, salol, and glycerol. In all cases we find that about 70% of the excess entropy is configurational in nature.

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