Physical Chemistry Real gases Estimate a molar volume e Estimate the molar volume of CO 2 at 500 K and 100 atm by treating it as a van der Waals gas.(the van der waals e coefficients of co are: a=3.592 atmL2mo1-2 6=4267x10-2L mo Answer RT r2 arab P P RT(8.206×10- Latmk- mol)×(500K) =0.410LmOl 100atm RT 6+ 0453Lmo0=3.59×10(Zmo ab =1.53×10-3(Lmol)3Estimate a molar volume Estimate the molar volume of CO2 at 500 K and 100 atm by treating it as a van der Waals gas. (the van der Waals coefficients of CO2 are: a=3.592 atmL2mol-2 , b=4.26710-2 L mol-1 ) Answer. 1 2 1 1 0.410 100 (8.206 10 ) (500 ) − − − − =   = Lmol atm LatmK mol K P RT 0 3 2  − =       +      − + P ab V P a V P RT Vm b m m 1 0.453 − + = Lmol P RT b 2 1 2 3.59 10 ( ) − − =  Lmol P a 3 1 3 1.53 10 ( ) − − =  Lmol P ab Physical Chemistry Real Gases