Q. The Decomposition of  N2O5 according to the equation  2 N2O5  (g)       4 NO2 (g)  +O2  (g) ​​ is a first order reaction . After 30 min from start of decomposition in a closed vessel the total pressure developed is found to be 284.5 mm hg on complete decomposition the total pressure is 584.5 mm hg . Calculate the rate constant of the reaction (1) 2.6 05 ×   10-3  min-1(2) 26.05 × 10-3 min-1 (3) 2.605 ×  10-2 min-1(4) 2.605 × 10-4 min-1

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