The following initial rate data are for the reaction of ICl with hydrogen: 2 ICl + H2I2 + 2 HCl

Experiment [ICl]o, M [H2]o, M Initial Rate, M s-1
1 0.343 0.148 1.35×10-2
2 0.686 0.148 2.70×10-2
3 0.343 0.295 5.37×10-2
4 0.686 0.295 0.107

Complete the rate law for this reaction in the box below.
Use the form k[A]m[B]n , where '1' is understood for m or n and concentrations taken to the zero power do not appear. Don't enter 1 for m or n.

Rate =

From these data, the rate constant is
M-2s-1.