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 atmL2 mo1- 2. 6=4267x10-2L mo Answer Vn3-0453V2+(3.59×102)n-(1.53×10-3)=0 Solve for the molar volume =0.366Lmol1 For a perfect gas =0.410LmOl RT(8:206×102 Latmk- mol)×(500K) 0.410Lmol1 100atmEstimate 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. Solve for the molar volume 1 0.366 − V = Lmol m For a perfect gas 1 0.410 − V = Lmol m 1 2 1 1 0.410 100 (8.206 10 ) (500 ) − − − − =   = Lmol atm LatmK mol K P RT 0.453 (3.59 10 ) (1.53 10 ) 0 3 2 2 3 − +  −  = − − Vm Vm Vm Physical Chemistry Real Gases