Rate data have been determined at a particular temperature for the overall reaction 2NO(g) + 2H2(g) → N2(g) + 2H2O(g). The value of the specific rate constant at this temperature is ___.

Trial Run Initial [NO] Initial [H2] Initial Rate (M•s–1)
1 0.10 M 0.20 M 0.0150
2 0.10 M 0.30 M 0.0225
3 0.20 M 0.20 M 0.0600