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Equations of state valid continuously from zero to extreme pressures for H2O and CO2
Abstract
A new form of equation of state is proposed for use over extremely wide ranges of pressure where conventional equations fail. In particular, fluids including H2O and CO2 as well as argon, etc., remain more compressible at very high densities than can be represented by typical equations with van der Waals or Carnahan and Starling repulsive terms. The new equation is fitted to the data for H2O and CO2 over the entire range from the vapor and liquid below the critical temperature to at least 2000 K and from zero pressure to more than 105 bar (10 GPa) with good agreement. The extension of the equation for mixed fluids is discussed.
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Cited by
Strength of the lithosphere: Constraints imposed by laboratory experiments
Kohlstedt, D. L., Evans, B., & Mackwell, S. J. (1995) · Journal of Geophysical Research: Solid Earth · doi:10.1029/95jb01460 · Cited by 1,603
Hirth, G., & Kohlstedt, D. L. (1996) · Earth and Planetary Science Letters · doi:10.1016/0012-821x(96)00154-9 · Cited by 1,599
Effects of pressure on high-temperature dislocation creep in olivine
Karato, S.-I., & Jung, H. (2003) · Philosophical Magazine · doi:10.1080/0141861021000025829 · Cited by 420
Metadata
- Authors
- Pitzer, K. S., & Sterner, S. M.
- Venue
- The Journal of Chemical Physics
- Publisher
- AIP Publishing
- Published
- 1994-08-15
- Volume
- 101
- Issue
- 4
- Pages
- 3111-3116
- ISSN
- 0021-9606 (ISSN-L)
- 1089-7690
- OpenAlex
- W1965110918
- Cited by
- 361
- References
- 0
- FWCI
- 4.69
- Type
- journal article
- Language
- en
- Open access
- closed
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- CoChat. (2026). Citation check: Equations of state valid continuously from zero to extreme pressures for H2O and CO2. https://app.cochat.ai/papers/10.1063/1.467624
- The paper
- Pitzer, K. S., & Sterner, S. M. (1994). Equations of state valid continuously from zero to extreme pressures for H2O and CO2. The Journal of Chemical Physics. https://doi.org/10.1063/1.467624
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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.
