In the above reaction A is the reactant and B is product
(i) Which of the following represent the average rate of disappearance of A with in time interval 50s to 100s ?
Text Solution
Verified by ExpertsCHECK THE SOLUTION.
(i)
Sol. With in time interval 50 s to 100 s, average rate of reaction
= 
= 1.4 × 10 –4 ML –1 s –1 (ii)
Sol. In 50 s the amount of decrease in A = 0.01 (M) and amount of increase in B = 0.01 (M)
(iii)
Sol. 
= k
n or – 
= k dt
∴ on integration kt
= 
If n = 2, for second order reaction
t = 
or kt = 
+ kt = 
When t = 50 s
k = 
= 
[25 – 20]= 
= 0.1
When t = 100 s
k = 
[30 –20] = 
when t = 150 s
k = 
[35 –20] = 
∴ given reaction is second order reaction with respect to A.
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