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A Unified Fundamental Equation for the Thermodynamic Properties of H2O

Hill, Philip G.·1990·Journal of Physical and Chemical Reference Data

Abstract

A new unified equation of state for H2O is presented, which includes the revised and extended scaling equation of Levelt Sengers, Kamgar–Parsi, Balfour and Sengers, is continuous over all single phase states of H2O from triple point pressure and temperature to 1000 MPa (or the melting line) and 1000 °C and provides accurate representation of existing thermodynamic data in that range. In addition it provides a smooth transition from singular critical region functions to the nonsingular far-field functions. This is demonstrated by the variations of isochoric specific heat, isothermal compressibility, speed of sound, specific heat ratio and coexistence line properties in the critical region.

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Metadata

Authors
Hill, P. G.
Venue
Journal of Physical and Chemical Reference Data
Published
1990-09-01
Volume
19
Issue
5
Pages
1233-1274
ISSN
  • 0047-2689 (ISSN-L)
  • 1529-7845
OpenAlex
W1965167716
Cited by
287
References
0
FWCI
5.57
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: A Unified Fundamental Equation for the Thermodynamic Properties of H2O. https://app.cochat.ai/papers/10.1063/1.555868
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Hill, P. G. (1990). A Unified Fundamental Equation for the Thermodynamic Properties of H2O. Journal of Physical and Chemical Reference Data. https://doi.org/10.1063/1.555868

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