Nitrogen dioxide (NO2) gas reacts with fluorine gas (F2) to give nitrosyl fluoride. The chemical reaction is given by the equation.
The reaction has the rate law as:
rate (r) = k [NO2] [F2]The rate has order one with respect to nitrogen dioxide concentration and fluorine concentration and the overall order is (1 + 1) which is two.
fig 6.6 - A comparison of first order and second order reactions
The above figure depicts the change of concentration of second order reaction with only one reactant, that is, a reaction of the type A
P where the rate law is rate r = k [A]2. 