1. The problem statement, all variables and given/known data Consider the decomposition of N2O5: 1. N2O5 → NO2 + NO3 2. NO2 + NO3 → NO2 + O2 + NO 3. NO + N2O5 → 3NO2 a) Find the reaction for the decomposition of N2O5 to stable products b) Find the steady-state concentration of the intermediate(s) c) Use the previous to show how the rate of reaction depends on the concentration of N2O5 2. Relevant equations First I made the following forward and reverse reactions using k1, k2 and k3: 1. N2O5 → NO2 + NO3 using k1 forward NO2 + NO3→ N2O5 using k-1 reverse 2. NO2 + NO3 → NO2 + O2 + NO with k2 3. NO + N2O5 → 3NO2 with k3 3. The attempt at a solution a) -d[N2O5]/dt = k1[N2O5] - (k-1)[NO2][NO3] b)The intermediates are NO and NO3 d[NO]/dt = 0= -k3[NO][N2O5]+k2[NO2][NO3] => simplifies to [NO] = (k2/k3)([NO2][NO3]/[N2O5]) d[NO3]/dt = 0= -k2[NO2][NO3]+k1[N2O5]-(k-1)[NO2][NO3] => simplifies to [NO3] = (-k1/(-k2-(k-1)))*[N2O5]/[NO2] c) from the last expression, it is possible to have [NO3][NO2]= (-k1/(-k2-(k-1)))*[N2O5] So, I substituted this for [NO3][NO2] in the overall reaction decomposition of N2O5 (part a): R= k1[N2O5] -(k-1)[-k1/(-k2-(k-1))*[N2O5]] = (k1+((K-1)k1)/(-k2-(k-1)))*[N2O5] ~ keff[N2O5] But isn't k3 supposed to be included in the overall reaction equation? Is this answer correct? Hope someone can help, thanks in advance!