Question

please help

Consider the following reaction. 4A+B+ 4C 4D + E The following data was collected on the reaction. Trial Alo [B], (ClO Rate (M/s) 0.32 0.62 0.32 6.861 0.64 0.62 0.32 13.722 0.32 0.32 13.722 4 0.32 0.62 0.64 6.861 2 1.24 Rate law = K[A142[8]1[C]" O Knowing the rate which of the two mechanisms are proposed would be accurate: Mechanism 1: Mechanism 1 Mechanism 2 A+B DY AC Y+C YoBoc X+A+C Z+A Which mechanism best fits the data? Select an answer Which is most likely the rate determining step? Select an am B

Answer 1

order w.r.t A

r1/r2 = (a1/a2)^y

(6.861/13.722) = ((0.32)/(0.64))^y

   y = 1

order w.r.t B

r1/r3 = (a2/a3)^x

(6.861/13.722) = (0.62/1.24)^x

x = 1

order w.r.t c

r1/r4 = (a1/a4)^z

(6.861/6.861) = ((1*10^-2)/(2*10^-2))^z

z = 0

rate law , rate = k[A][B][C]^0

Suitable mechanism is 1

rate determining step = 1 A+B ---> D+Y