Pressure dependence of the isothermal compressibility and a modified form of the Tait equation
- 15 October 1975
- journal article
- research article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 63 (8), 3379-3381
- https://doi.org/10.1063/1.431774
Abstract
The pressure dependence at low pressures of the isothermal compressibility βT of liquids has been computed via a van der Waals type model of the liquid state for the temperature range 1 ? T/Tt ? 1.4 (where Tt denotes the triple point temperature). The results are in good agreement with the scarce experimental data: for most organic solvents, the quantity −(∂βT/∂P)T/βT2 ranges from 9–11. For water, the theory correctly predicts a much lower value. In the indicated range, the variation with temperature is small, in agreement with experiment and suggested by a modified Tait equation.Keywords
This publication has 20 references indexed in Scilit:
- On the theory of simple liquidsAdvances in Molecular Relaxation Processes, 1972
- Generalized van der Waals theory for dense fluidsThe Chemical Engineering Journal, 1972
- Review of Some Experimental and Analytical Equations of StateReviews of Modern Physics, 1969
- Molar heat capacity at constant volume. Binary mixtures of 1,2-dicholroethane and 1,2-dibromoethane with cyclohexaneTransactions of the Faraday Society, 1969
- Compressibility equations for liquids: a comparative studyBritish Journal of Applied Physics, 1967
- Some Simple Isothermal Equations of StateReviews of Modern Physics, 1966
- The PVT properties of waterPhilosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences, 1965
- Variations on van der Waals' equation of state for high densitiesMolecular Physics, 1965
- Scaled Particle Methods in the Statistical Thermodynamics of FluidsAdvances in Chemical Physics, 1965
- The heat capacities of certain liquidsProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1957