The DOI matches its Crossref record.
A Unified Fundamental Equation for the Thermodynamic Properties of H2O
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.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cited by
Diamond, L. W., & Akinfiev, N. N. (2003) · Fluid Phase Equilibria · doi:10.1016/s0378-3812(03)00041-4 · Cited by 578
Thermodynamic Databases for Water-Rock Interaction
Oelkers, E. H., Benezeth, P., & Pokrovski, G. S. (2009) · Reviews in Mineralogy and Geochemistry · doi:10.2138/rmg.2009.70.1 · Cited by 126
Metadata
- Authors
- Hill, P. G.
- Venue
- Journal of Physical and Chemical Reference Data
- Publisher
- AIP Publishing
- 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
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: A Unified Fundamental Equation for the Thermodynamic Properties of H2O. https://app.cochat.ai/papers/10.1063/1.555868
- The paper
- 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
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.