The Redlich-Kwong equation of state (EOS) is given by RT a V-b T05V(V-b) where P= where a=0.4278RT25/P Te = critical temperature (K) P = critical pressure (atm) R = 82.05 (atm)(cm)/(g-mol)(K) In an alternate form, the Redlich-Kwong equation is written as 1 A h 1-h B Z= Note: b=0.0867 RT./Pc (1) A=a/R2T25 and B=b/RT Estimate the molar volume of isopropyl alcohol vapor at 10 atm and 200C (h = 0.0205). The critical properties of isopropyl alcohol are: T = 508.2 K and P = 50 atm V = ZRT/P