Nitrogen Monoxide reacts with hydrogen gas to form nitrogen gas and water (vapor). (i). write a balanced equation for this reaction. (ii). The reaction is experimentally found to be (approx) first-order in H2 and second order in in NO. Write the form if the experimentally-determined rate law and the units of the rate constant (if the concentrations are in molL^-1.

Answer 1

2NO + 2H2 ==> 2H2O + N2
rate = k[H2][NO]²
You can get the units of k here.
http://en.wikipedia.org/wiki/Reaction_rate_constant#Units

Answer 2

if u were not given the experiments values how will u determine the order of reaction?