The gas-phase reaction of NO and F2 to form NOF and F has an activation energy of 6.3 kJ/mol and a frequency factor A = 6.0 x 108 M-1 s-1. The reaction is believed to be bimolecular:
NO (g) + F2 (g) ? NOF (g) + F (g)
(a) Calculate the rate constant at 100 °C.
(b) Suggest a reason for the low activation energy for this reaction.