Question

First order Trendline for Ina R2 = 0.997 Ina 0 -1 -2 10 8 6 2 Time (hours) n (A) M Lecure notes Po.3 5 pts each 7. In lecture, real experimental data was presented for the decomposition reaction wherein N2Os decomposed to NO2 and O2 at 30C. Use the data provided to answer the following three questions a) Assume that the order of the reaction with respect to N:Os is either 1 What is the order? Support your contention (see 9b below). or 2 1st order b) Support your answer in part 9a with appropriate graphical analysis of the data using the Excel program. You should present 2 appropriate graphs properly titled and with properly labeled axes to support your contention. c) Give the rate constant for the reaction with the proper units. Rare KCazos d) Calculate ti2 for this reaction. th- In2 [N.O.], mol/L N2O5 2 NO2+ /2 02 1.40 Average rate for 15 min period 0.12 mol/L 1.30 15 min to decrease mol 1.20 [N20s] from 1.22 to 1.10 Rate of reaction 0.0080 15 min Lmin 1.10 1.00 Instantaneous rate when [N205 = 0.34 M ΣΔΙΝ,0.1 - 0.42 mol/L (6.3 h-4.0 h) (60 min/h) mol 0.90 0.22 mol/L Instantaneous rate At 0.80 0.70 0.0014 L min 0.60 Average rate for 6.5 to 9.0 h 0.50 0.42 mol 0.40 Rate of reaction 0.00080 A[N,Os] L min 0.30 0.22 0.20 At 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10 11 Time (t), hours Brocks/Cole Cengage Leaming

Answer 1

9ta ince the arabh between the IntA) raight oxder of reaction Vs time Line then the must be eqol to oneir', orolen 1 given, we hare In [A1 kt InA k(5) tnl0.3) In1403 I01-40)-10(0.3) 3.08ヤ10 ty2 di K D 693 ) 3.08x10-2.25 hous