Consider the following data concerning the equation:

$H_2{O}_2+3I^{-}+2H^{+}{I}_3^{-}+2H_{2}O$

$\backslash$table$[[$Exp$.$ #$,[H_2{O}_2]M,[H]M,[H^{+}]M,$Rate M$/$s$],[1,0\mathrm{.}100,5\mathrm{.}00{10}^{-4},1\mathrm{.}00{10}^{-2},0\mathrm{.}137],[2,0\mathrm{.}100,1\mathrm{.}00{10}^{-3},1\mathrm{.}00{10}^{-2},0\mathrm{.}268],[3,0\mathrm{.}200,1\mathrm{.}00{10}^{-3},1\mathrm{.}00{10}^{-2},0\mathrm{.}542],[4,0\mathrm{.}400,1\mathrm{.}00{10}^{-3},2\mathrm{.}00{10}^{-2},1\mathrm{.}084]]$

nat is the rate law for this reaction and what is the average valua for the rate nstant with units?