Solved: The following reactions are common in the
Chapter 20, Problem 20.91(choose chapter or problem)
The following reactions are common in the stratosphere: (a) NO2(g) NO(g) 1 O(g) (b) N2O(g) N2(g) 1 O(g) (c) H2(g) 1 O(g) OH(g) 1 H(g) (d) CH4(g) 1 O(g) OH(g) 1 CH3(g) First, without doing any calculations, predict whether each of the reactions is endothermic or exothermic. Then estimate DH for each reaction, and comment on your predictions and estimates.
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