3)a)A possible mechanism for the reaction 2NO+O22NO2 is 1.NO+NON2O22.N2O23.N2O2+O22NOk1k2k3 i) Apply steady state approximation to obtain a rate law in terms of concentration of NO and O2 ii) If only a very small fraction of all N2O2 formed goes to give product in Eqn. (2) and If the activation energies E1=82kJ/mol2E2=95kJ/mol,E3=82kJ/mol, What is the observed activation energy. b) Consider the following mechanism to describe the overall reaction. A+BD Mechanism: k1 1. step 2. step 3. step 2AA2K1=k1k1k1 k2 A+BCK2=k2k2 k2 A2+Ck3D+2Aslow What is the rate equation derived from above mechanism