Question

The following reaction mechanisms we have discussed to some degree during class: (kA 0.12 s) (kB 1.98x10-16 cm3 molecule1 s') (kc 3.23x10-17 cm3 molecule1 s-1) (kD 1.00x10-12 cm3 molecule s1) (A) HNO3 OH NO2 (B) СО + О СО2 (C) NO2+ O3 NO3O2 (D) 2NO2 N2O4 (E) 2NO H2 N20 + H2O 1. 2NO N2O2 (k1,f= 1.00x10-14 cm3 molecule1 s-1) (ki,r 1.00x10-2 s1) (k2 1.00x10-16 cm3 molecule s1) (kF 0.001 s1 2. N2O2 H2 N20H20 (F) O3 hv O2 + O d[HNO3] 1. Write the rate expressions for each molecule involved in the reactions, i.e., dt

Answer 1

Page No. 1 Date Expt. No. Meaction ay aA CReactaut) B C Product I dlcone o A) I d(cone of B) Rate dreaction 4 dt dt a Rate laus K cone ot Reactout ) (A) HNO OH + No Rate expression --dCHNO, 1- dlon] dt KA CHNO, T Rate Ca- order, detumund lapewimenta ly (k .98X 10-IC Cm maenl) Co (B) COto Rate expresto dlo dt 11 dt dt Rate = NO, t 0,-NO, +0 e=3.23 X1O em mlecales Rate expression drNo1 dt dCNo,1 dt k LNo,La Rate =

(Kp=1X1012 Crn mluals 41 2 No N, O Rate enpression Lo'NJP dt Rati 2 NO + NOTKO Rate enpres ion dt KELNOTT Rate kp = 0.00141 0, tO Rate expression dt Iabs =Intensity ofight abdosed Labs date =

Date Page No 3 (E) 2 No + N,OtkO Sic ps 2 NO& N, o Ke -1.00 X16 Cann des L00X102) (kut 2 appeximation (sSA), nte g Hematibn of iader midiate is epual to the decempaitan The rencentration of n stato Steady Late thteime duate Aeaction oppead cons tant the as do N2O inteimediate SSA On (4 2 NO NO 2 NO N,a from resction A KpC No12 dt Frem seadtion B -dEN,o, dt - Ki CNa CLASSTIME

from resetion -dENa 1 k, CN,o, 14 dt d LN,o,1 - k, CN,o Thus OveralU KiPC NO1- kN, O,1- k,EN,o, 1Pn] dN,o,1 dEN,o,1 dt Con applyug ssA kp C No1-KN, o1-, N,O 1fn kpl NoJ-NO,1Ck+k,Cn)o [NOJCKB CI)= KeCNO NO2 KirtkCn shats concentration stin Expression ter steady Kirt k,Ch3

bement Date Page No N,a.)er KpfNOT GIren ENO1 Ippb S0D ppb Yalues On CL.0OX104) L0OX101 6 dualesopph mdecules cn- Convert Ppb iuta IX|6 x No deus ity of au mdeles Ix109 x 2.S X1o' mdeales m-3 -14 N.O1 1.0o Xlo mdicales(1 1ox2-5X1omeks -16 mdeutes con 2 L100X1x 25) (edeceles)(mlyle Lenas mdeta st XSvo XIox2XI o 16 361 mobales cm3 X10 lo -6.25 X 1o l0s1) t(1250x 16 X1X 101) 6 25 X 10266 mdu cales cm3 17 246 mduauls cm E 6.5Xlo CLASSTIME C1250 X 10-2-) IX1014)

Loge& No.1s 6.25 X10 266 mducules cm -3 11250 X10 5.5555 X l0268 11 mecules em Expresiom for pro duction ate of N,o Phum reacum 1016 EN,O,11 dt (t0-1 Cuas mdcake ) (s.555 5X102 mles cn 5o0X109x2.5 XIO mdiculs Cm 3 molecules cm 69344.375X 10262 6.9344 X 10266 mecules em-