Rate constants for decomposition of gaseous dinitrogen pentoxide are 3.7 x 10-5 s-1 at 25°C and 1.7 x 10-3 s-1 at 55°C. (a) Determine the activation energy for this reaction in kJ/mol. (b) Calculate the rate constant at 35°C. T, : 25°C + 273.15 = 198.15K In(는) Ea k, : 3.7 x 10s-' T: 55°C + 273.15 = 328.15 K -3 : 3.827465l17 -3 kg = 1.7 x 10s' \3.7 x1055-' • 0.00030663 K-' 328-15 K 298. IS K Rin() - (R.314(.827465117) 1.04 x 1o5 * Ea = - 0. 00030663 K* Ea + 104

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