Neumaier, Arnold ORCID: 0000-0002-8328-9641 and Deiters, Ulrich K. ORCID: 0000-0001-7669-5847 (2016). The Characteristic Curves of Water. Int. J. Thermophys., 37 (9). NEW YORK: SPRINGER/PLENUM PUBLISHERS. ISSN 1572-9567

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Abstract

In 1960, E. H. Brown defined a set of characteristic curves (also known as ideal curves) of pure fluids, along which some thermodynamic properties match those of an ideal gas. These curves are used for testing the extrapolation behaviour of equations of state. This work is revisited, and an elegant representation of the first-order characteristic curves as level curves of a master function is proposed. It is shown that Brown's postulate-that these curves are unique and dome-shaped in a double-logarithmic p, T representation-may fail for fluids exhibiting a density anomaly. A careful study of the Amagat curve (Joule inversion curve) generated from the IAPWS-95 reference equation of state for water reveals the existence of an additional branch.

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Neumaier, ArnoldUNSPECIFIEDorcid.org/0000-0002-8328-9641UNSPECIFIED
Deiters, Ulrich K.UNSPECIFIEDorcid.org/0000-0001-7669-5847UNSPECIFIED
URN: urn:nbn:de:hbz:38-265223
DOI: 10.1007/s10765-016-2098-1
Journal or Publication Title: Int. J. Thermophys.
Volume: 37
Number: 9
Date: 2016
Publisher: SPRINGER/PLENUM PUBLISHERS
Place of Publication: NEW YORK
ISSN: 1572-9567
Language: English
Faculty: Faculty of Mathematics and Natural Sciences
Divisions: Faculty of Mathematics and Natural Sciences > Department of Chemistry > Institute of Physical Chemistry
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
VIRIAL-COEFFICIENTS; THERMODYNAMIC PROPERTIES; UNIVERSAL EQUATION; STATE; MIXTURESMultiple languages
Thermodynamics; Chemistry, Physical; Mechanics; Physics, AppliedMultiple languages
Refereed: Yes
URI: http://kups.ub.uni-koeln.de/id/eprint/26522

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