The following rate data were obtained at 25 degress celsius for the reaction 2SO
ID: 766781 • Letter: T
Question
The following rate data were obtained at 25 degress celsius for the reaction 2SO2 (g) + O2(g) ----> 2SO3 (g) Rate = k[SO2]^x[O2]^y, Experiment 1 inital [SO2] 0.30 M, Initial [O2] 0.20 M, Rate Forming SO3 1.2X10-2 M/s, Experiment 2 inital [SO2] 0.30 M, Initial [O2] 0.10 M, Rate Forming SO3 6.0X10-3 M/s, Experiment 3 inital [SO2] 0.60 M, Initial [O2] 0.20 M, Rate Forming SO3 4.8X10-2 M/s, Experiment 4 inital [SO2] 0.35 M, Initial [O2] 0.15 M, Rate Forming ? SOLVE FOR THE ORDERS WITH RESPECT TO EACH REACTANT SHOW ALL WORK, WHAT IS THE OVERALL ORDER, AFTER DETERMINING THE ORDERS WRITE THE RATE LAW EXPRESSION, DETERMINE THE VALUE AND UNITS OF k SHOW ALL WORK, DETERMINE THE RATE OF FORMING OF SO3 FOR EXPERIMENT 4, SHOW ALL WORK.Explanation / Answer
exp 1/ exp2 = (0.2/0.1) ^ y = 1.2 x10^ -2/6 x10^ -3 , y =1 exp 3/exp1 =(0.6/0.3)^x = 4.8 x10^ -2/1.2 x10^ -2 , x = 2, order with respect to SO2 = 2 , order with respect to O2 = 1 overall order = 2+1= 3 rate = k{SO2]^2[O2] 1.2 x10^ -2 = k (0.3)^2 x(0.2) k = 0.667 M^-2 s^-1 rate = 0.667 x (0.35)^2 x(0.15) = 1.225 x10^ -2 M/s
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