The following experimental data were obtained for the reaction;

2 NO + 2 H2 ¡æ N2+ 2 H2O
Rate/10-5M/s [NO]/10-2M [H2]/10-2M
0.50 0.50 0.20
2.00 1.00 0.20
0.25 0.25 0.40

Write a rate law in agreement with the data.
Rate =
What is the value and units of the rate constant?