Scaled equation for the isochoric heat capacity of methane-ethane mixtures in the critical region
β Scribed by M. A. Anisimov; S. B. Kiselev; S. E. Khalidov
- Publisher
- Springer
- Year
- 1988
- Tongue
- English
- Weight
- 443 KB
- Volume
- 9
- Category
- Article
- ISSN
- 0195-928X
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We have measured the isochoric heat capacity \(C_{V}\) of carbon dioxide in both the one-phase and two-phase regions near the critical point. Temperatures varied from \(280 \mathrm{~K}\) to \(355 \mathrm{~K}\), and densities varied from \(461.2 \mathrm{~kg} \cdot \mathrm{m}^{-3}\) to \(519.2 \mathrm
A generalized scaled equation of state has been developed to calculate thermodynamic properties of n-alkanes from methane (CH4) to n-nonane (C9H20) in the critical region. The equation is valid in the reduced density range 0.7~<pc~< 1.3 at T= T c and up to 1.2T~ at P=Pc.