MEDIUMMCQ SINGLEJEE Mains ChemistryPhysical ChemistryChemical kineticsElementary & Complex Reactions
For a reaction, 2NO 2H N 2H O, -> the possible mechanism is 2NO N O slow N O H N O H O -> fast N O H N H O -> What is the rate law and order of the reaction? (a) Rate = [N2O2], order =
B.Rate = [N2O2] [H2], order = 2✓ Correct
C.Rate = [N2O2]2, order = 2
D.Rate = [N2O2]2 [H2], order = 3
Explanation
Steps involved 2 2 slow 2 2 2 2 2 fast 2 2 2 2 2NO N O N O H N O H O N O H O N H O -> -> Slowest step is rate determining step. So rate law written w.r.t. 2nd step 1 1 2 2 2 R= k N O H Order = 1 + 1 = 2
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