![4. Consider the elementary reaction, | 2A + B - k Z what is the rate of consumption of A, if [A]. = 2a., [B]. = 2., (Z]. = 0,](http://img.homeworklib.com/questions/8e9b8f20-708e-11ea-bb7b-39b9a1296caa.png?x-oss-process=image/resize,w_560)
Homework Answers
Elementary reaction:
2A + B 1/2 Z
Rate of reaction = - 1/2 * d(A)/dt = k (A)2 (B) ...................i
After time 't' : 1/2 Z = 1/2 x
and (A) = (A)o - 2x = 2ao - 2x = 2 (ao - x) (2x molecule of A reacts to make 1/2 x )
(B) = (B)o - x = (ao - x) (x molecule of B reacts to make 1/2 x )
From (i) ; on putting values
- 1/2 * d(A)/dt = k (A)2 (B) = k (2 (ao - x))2 *(ao - x)
or - d(A)/dt = 8k (ao - x)3 ; So correct answer is (A).
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