Consider the energy profile below.
Potential Energy Profile
Potential Energy
A
B
Reaction Progress
Which step has the greatest activation energy, Ea?
C going to A
A going to C
E going to C
C going to E
D
E
QUESTION 19
Determine the rate law for the following reaction using the data provided in the table.
$2O_8^{2-}(aq) + 3I^-(aq) \rightarrow 2SO_4^{2-}(g) + I_3^-(aq)
Experiment
$[S_2O_8^{2-}] , M
[I^-] , M
Initial Rate, M/s
1
0.90
1.26
13.62
2
1.32
1.26
19.95
3
1.32
0.63
9.99
rate = k [S_2O_8^{2-}]
rate = k [S_2O_8^{2-}]^2
