The rate of reaction refers to how quickly or solwly a reaction occurs;
a) Both A and B are second order
b) The rate law of the reaction is R = k[A]^2 [B]^2
c)The rate constant is 5.21 * 10^5 mol-3L^3s-1.
What is the rate of reaction?
The term rate of reaction refers to how quickly or slowly a reaction occurs.
a) To obtain the order with respect to A, we divide reaction (3) by (2) as follows;
5.01 * 10^-1/1.25 * 10^-1 = k[0.0070]^m [0.14]^n/k[0.0035]^m [0.14]^n
4 = 2^m
2^2 = 2^m
m =2
To obtain the order with respect to B, we divide reaction (2) by (1);
1.25 * 10^-1/3.13 * 10^-2 = k[0.0035]^m [0.014]^n/k[0.0035]^m [0.0070]^n
4 = 2^n
2^2 = 2^n
n = 2
b)The reaction is second order in both A and B hence the rate law is R = k[A]^2 [B]^2
c) We can obtain K using any of the reactions;
0.0313 molL-1s-1 = k[0.0035molL-1]^2 [0.0700molL-1]^2
k = 0.0313 molL-1s-1/[0.0035molL-1]^2 [0.0700molL-1]^2
k = 5.21 * 10^5 mol-3L^3s-1
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