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Nitrogen monoxide is reduced by hydrogen to give nitrogen and water:
2 NO(g) + 2 H2(g) → N2(g) + 2 H2O(g)
One possible mechanism for this reaction involves the following reactions:
2 NO(g) → N2O2(g)
N2O2(g) + H2(g) → N2O(g) + H2O(g)
N2O(g) + H2(g) → N2(g) + H2O(g)
What is the molecularity of each of the three steps? What is the rate equation for the third step? Identify the intermediates in this reaction; how many different intermediates are there? Show that the sum of these elementary steps gives the equation for the overall reaction.
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