SI Units           English Units
                         
  Constants in Benedict-Webb-Rubin (BWR) Equation of State            
 

p in kPa
T in K
vbar in m^3/kmol
Rbar=8.314 kJ/kmo.K

 

 
 
  a A0 b B0 c C0 a g
  Nitrogen N2 2.54 106.73 0.002328 0.04074 7.379 x 104 8.164 x 105 1.272 x 10-4 0.0053
  Methane CH4 5 187.91 0.003380 0.04260 2.578 x 105 2.286 x 106 1.244 x 10-4 0.0060
  Carbon monoxide CO 3.71 135.87 0.002623 0.05450 1.054 x 105 8.673 x 105 1.350 x 10-4 0.0060
  Carbon dioxide CO2 13.86 277.30 0.007210 0.04991 1.511 x 106 1.404 x 107 8.470 x 10-5 0.0054
  n-Butane C4H10 190.68 1021.60 0.039998 0.12436 3.205 x 107 1.006 x 108 1.101 x 10-3 0.0340