Redlich-Kwong equation of state: Difference between revisions

Revision as of 17:32, 6 February 2008

\left[p+{\frac {a}{T^{1/2}v(v+b)}}\right](v-b)=RT

where

a=0.4278{\frac {R^{2}T_{c}^{2.5}}{P_{c}}}

and

b=0.0867{\frac {RT_{c}}{P_{c}}}

where $p$ is the pressure, $T$ is the temperature and $R$ is the molar gas constant. $T_{c}$ is the critical temperature and $P_{c}$ is the pressure at the critical point.

@@ Line 1: / Line 1: @@
-:<math>\left[ P + \frac{a}{T^{1/2}v(v+b)} \right] (v-b) = RT</math>
+:<math>\left[ p + \frac{a}{T^{1/2}v(v+b)} \right] (v-b) = RT</math>
 where
@@ Line 8: / Line 8: @@
 :<math>b= 0.0867 \frac{RT_c}{P_c}</math>
+where <math>p</math> is the [[pressure]], <math>T</math> is the [[temperature]] and <math>R</math> is the [[molar gas constant]]. <math>T_c</math> is the [[critical points | critical]] temperature and <math>P_c</math> is the pressure at the critical point.
 ==References==
 #[http://dx.doi.org/10.1021/cr60137a013 Otto Redlich and J. N. S. Kwong "On the Thermodynamics of Solutions. V. An Equation of State. Fugacities of Gaseous Solutions", Chemical Reviews '''44''' pp.  233 - 244 (1949)]
 #[http://dx.doi.org/10.1016/0009-2509(72)80096-4  Giorgio Soave "Equilibrium constants from a modified Redlich-Kwong equation of state", Chemical Engineering Science   '''27''' pp. 1197-1203 (1972)]
 [[category: equations of state]]