The following mechanism has been proposed for the gas phase reaction of nitrogen monoxide with bromine
step 1 fast: NO + Br2 ⇌ NOBr2
step 2 slow: NOBr2 + NO → 2 NOBr
(3) Complete the rate law for the overall reaction that is consistent with this mechanism. Use the form k[A]^m[B]^n... , where '1' is understood (so don't write if it is a 'I') for m, n etc.