N2O5k⇌NO2+NO3(fast)
NO2+NO3k1→NO2+NO+O2(slow)
NO+NO3k2→2NO2(fast)
'K' is rate constant of reaction: N2O5→2NO2+12O2
(a)5.2×103s(b)4.9×103(c)4.6×103s(d)6.1×103s