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Rates of Non-Elementary Reactions

APCHEM-HUME1I

Based on knowledge of collisions and orientation factors for reactions, which of the following non-elementary reactions would be MOST likely to have the highest rate constant for a given temperature, presuming all reactants are in equal concentrations?

A

$N_2+ 3H_2 \rightarrow 2NH_3$

B

$NO + O_3 \rightarrow NO_2+ O_2$

C

$2NO + O_2 \rightarrow 2NO_2$

D

$2H_2+ O_2 \rightarrow 2H_2O$