Dieterici equation of state

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The Dieterici equation of state, proposed in 1899 (Ref. 1) is given by

\left. p(v-b) \right.= RT e^{-a/RTv}

where

a = \frac{4R^2T_c^2}{P_ce^2}

and

b=\frac{RT_c}{P_ce^2}

where p is the pressure, T is the temperature and R is the molar gas constant. Tc is the critical temperature and Pc is the pressure at the critical point.

[edit] References

  1. C. Dieterici, Ann. Phys. Chem. Wiedemanns Ann. 69, 685 (1899)
  2. K. K. Shah and G. Thodos "A Comparison of Equations of State", Industrial & Engineering Chemistry 57 pp. 30 - 37 (1965)
  3. Richard J. Sadus "Equations of state for fluids: The Dieterici approach revisited", Journal of Chemical Physics 115 pp. 1460-1462 (2001)
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