O + C2H4 -> H + CH2CHO

k = 6.7E+06 T^1.83 exp(- 220 cal/mol /RT) cm3/mol s

SOURCE:: Rate expression is a fit to the 2-term expression of Klemm et al. (1990) for the overall rate coefficient multiplied by the 0.35 branching fraction to this channel recommended by Baulch et al. (1992).

COMMENTS:: Related reaction is 25 O + C2H4 = CH3 + HCO.

REFERENCES:

Klemm, R.B.; Sutherland, J.W.; Wickramaaratchi, J.A.; Yarwood, G. (1990) J. Phys. Chem. 94, 3354.

Baulch, D.L.; Cobos, C.J.; Cox, R.A.; Esser, C.; Frank, P.; Just, Th.; Kerr, J.A.; Pilling, M.J.; Troe, J.; Walker, R.W.; Warnatz, J. (1992) J. Phys. Chem. Ref. Data 21, 411.

Total rate constant for k(25) + k(285) is the same as the GRI-Mech 1.2 value.

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  Temp       DS          DH        kf        kr        Keq
   (K)   (cal/mol K)  (kcal/mol)   ----- (mol,cm3,s)  -----    
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   298       0.5       -14.0    1.56E+11  7.05E+00  2.21E+10
   300       0.6       -13.9    1.58E+11  8.26E+00  1.91E+10
   400       1.3       -13.7    2.94E+11  5.06E+03  5.80E+07
   500       1.8       -13.5    4.67E+11  2.46E+05  1.89E+06
  1000       2.7       -12.8    1.85E+12  7.45E+08  2.49E+03
  1500       3.0       -12.5    4.04E+12  1.36E+10  2.97E+02
  2000       3.0       -12.5    6.96E+12  6.70E+10  1.04E+02
  2500       2.9       -12.7    1.06E+13  1.92E+11  5.52E+01
  3000       2.8       -13.0    1.49E+13  4.15E+11  3.59E+01
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