3)a)A possible mechanism for the reaction 2NO +0 energy. 2. N0 3. NO + O 2NO i) Apply steady state approximation to obtain a rate law in terms of concentration of NO and 0 Mechanism: 1. slep 1. NO + NO ii) If only a very small fraction of all NO formed goes to give product in Eqn. (2) and If the activation energies E-82 kJ/mol, E-95 kJ/mol, 82 kJ/mol, What is the observed activation 2. step > NO 3. b) Consider the following mechanism to describe the overall reaction. AB - D step > 2NO kl 2A = A + C k-1 k2 A 2 A+B= C k k3 1 2NO is D+ 2 A What is the rate equation derived from above mechanism. K- K EI k2 k-2 slow

3)a)A possible mechanism for the reaction 2NO+O22NO2 is 1. NO+NON2O2k1 2. N2O22NOk2 3. N2O2+O22NO2k 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 fomed goes to give product in Eqn. (2) and If the activation energies F182kJ/mol,F295kJ/mol,l282kJ/mol, What is the observed activation encrgy. b) Consider the following mechanism to describe the overall reaction. A+BD Mechanism: k1 1. step 22K1k1k1 2. step A+BC k2k2k2 k2 3. step A2+C 3 D+2A slow What is the rate equation derived from above mechanism