Answer: Peroxyacetyl nitrate (PAN) undergoes thermal
Chapter 20, Problem 20.84(choose chapter or problem)
Peroxyacetyl nitrate (PAN) undergoes thermal decomposition as follows: CH3(CO)OONO2 CH3(CO)OO 1 NO2 The rate constant is 3.0 3 1024 s21 at 25C. At the boundary between the troposphere and stratosphere, where the temperature is about 240C, the rate constant is reduced to 2.6 3 1027 s21 . (a) Calculate the activation energy for the decomposition of PAN. (b) What is the half-life of the reaction (in minutes) at 25C?
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