1.

For the reaction, 2H_(2)(g)+2NO(g) rarr N_(20(g) +2H_(2)O(g) Rate =k[H_(2)][NO]^(2). This mechanism has been proposed: Step 1: H_(2)+NO rarr H_(2)O+N Step2 : N=NO rarr N_(2)+O Step 3 : O+H_(2) rarr H_(2)O Which statement about this rate law and mechanism is correct?

Answer»

The MECHANISM is consistent with the RATE LAW if step 1 is the rate determineing step.
This mechanism is consistent with the rate law if step 2 is the rate detemining step.
The mechanism is consistent with the rate law if step 3 is the rate determining step.
This mechanism can not be consistent with the rate law, REGARDLESS of which step is rate-determining.

Answer :B


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