Consider air in chemical equilibrium at 0.1 atm and T = 4500 K. Assume the chemical species present are O2, O, N2, and N. (Ignore NO.) Calculate the enthalpy in joules per kilogram. Note the following physical data: K2,02 = 12.19 atm, _Kp.No = 0.7899 * 10-4 atm; for N2, AH; = 0 and v= 7.06 x 1013 (s='); for N, AHY = 4.714 x 108J/(kg . mol); for 02, AH; = 0, and v= 4.73 x 1013 (s='); for O, AH; = 2.47 x 108 J/ (kg mol). Ignore the electronic levels. -1 . = S