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The following data are for the gas phase decomposition of dinitrogen pentoxide at 335 K.

N2O5(g)  2 NO2(g) + ½ O2(g)

[ N2O5 ], M4.00×10-22.00×10-21.00×10-25.00×10-3
  time, s0101202303



Hint: It is not necessary to graph these data.

(1)
The half life observed for this reaction is  s .

(2)
Based on these data, the rate constant for this  order reaction is  s -1.


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