Hydrogen-Air Reaction Mechanism (CHEMKIN II/III)
Here an example from the CHEMKIN II/III user manual  is used to validate Chemked calculations against data obtained independently in another work. In the example , the chemistry of H2/O2/AR gas mixture was considered. The reaction mechanism of the mixture consists of 11 species and 23 reactions. A constant pressure problem is solved.
Mole fractions: [H2]0 : [O2]0 : [N2 ]0= 1 : 3 : 0.1
Fig. 1. Comparison of calculated profiles: points – CHEMKIN data , lines – Chemked calculation.
The same reaction mechanism and initial conditions are used to check calculation of equilibrium gas composition. In this case the problem must be solved to a long final time (for example, to 1 sec) to make sure that the equilibrium is established. These data are in excellent agreement with results obtained independently with the program CHEMKIN Equil.
 R.J. Kee, F.M. Rupley, J.A. Miller, M.E. Coltrin, J.F. Grcar, E. Meeks, H.K. Moffat, A.E. Lutz, G. Dixon-Lewis, M.D. Smooke, J. Warnatz, G.H. Evans, R.S. Larson, R.E. Mitchell, L.R. Petzold, W.C. Reynolds, M. Caracotsios, W.E. Stewart, P. Glarborg, C. Wang, and O. Adigun. CHEMKIN Collection, Release 3.6, Reaction Design, Inc., San Diego, CA (2000).