7. Consider the following chain for dry CO oxidation: k CO + O CO + O...
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7. Consider the following chain for dry CO oxidation: k CO + O CO + O K 0 + 0 + M 03 + M K3 O3 + CO CO + 20 K4 O3 + CO + M CO + O + M a) Using the law of mass action, derive equations for the rate of change of CO, O, and 03 concentrations. b) Assuming that O and O3 are radical species, identify the initiation, chain carrying, chain branching, and termination steps. Explain for each. c) Apply the steady-state assumption to O and O3 and solve for the steady-state concentrations of O and O3 in terms of the stable species concentrations and their rate constants. d) Using your result, show that the steady state assumption becomes invalid when k3 > K4[M]. 7. Consider the following chain for dry CO oxidation: k CO + O CO + O K 0 + 0 + M 03 + M K3 O3 + CO CO + 20 K4 O3 + CO + M CO + O + M a) Using the law of mass action, derive equations for the rate of change of CO, O, and 03 concentrations. b) Assuming that O and O3 are radical species, identify the initiation, chain carrying, chain branching, and termination steps. Explain for each. c) Apply the steady-state assumption to O and O3 and solve for the steady-state concentrations of O and O3 in terms of the stable species concentrations and their rate constants. d) Using your result, show that the steady state assumption becomes invalid when k3 > K4[M].
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