The forward reaction rate for the nitric oxide-oxygen reaction `2NO+O_(2) rarr 2NO_(2)` has the rate law as: `Rate = k[NO]^(2)[O_(2)]`. If the mechanism is assumed to be: `2NO+O overset(k_(eq))hArr` , (rapid equilibration) `N_(2)O_(2) + O_(2) overset(k_(2))rarr 2NO_(2)` (slow step), then which of the following is (are) correct? (I) Rate constant `= k_(eq)k_(2)` , (II) `[N_(2)O_(2)] = k_(eq)[NO]^(2)` (III) `[N_(2)O_(2)] = k_(eq)[NO]` , (IV) Rate constant `= k_(2)` The correct option isA. I, IIB. III, IVC. I, IIID. None of these

The forward reaction rate for the nitric oxide-oxygen reaction `2NO+O_

1.	The forward reaction rate for the nitric oxide-oxygen reaction `2NO+O_(2) rarr 2NO_(2)` has the rate law as: `Rate = k[NO]^(2)[O_(2)]`. If the mechanism is assumed to be: `2NO+O overset(k_(eq))hArr` , (rapid equilibration) `N_(2)O_(2) + O_(2) overset(k_(2))rarr 2NO_(2)` (slow step), then which of the following is (are) correct? (I) Rate constant `= k_(eq)k_(2)` , (II) `[N_(2)O_(2)] = k_(eq)[NO]^(2)` (III) `[N_(2)O_(2)] = k_(eq)[NO]` , (IV) Rate constant `= k_(2)` The correct option isA. I, IIB. III, IVC. I, IIID. None of these
Answer» Correct Answer - D `k_(eq) = ([N_(2)O_(2)])/([NO]^(2)) rArr [N_(2)O_(2)] = k_(eq)[NO]^(2)` and `RDS : Rate = k_(2)[N_(2)O_(2)][O_(2)]` `= k_(2)k_(eq)[NO]^(2)[O_(2)] = k [NO]^(2)[O_(2)]`

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