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The reaction of O(3) with chlorine atom ...

The reaction of `O_(3)` with chlorine atom is given as :
`O_(3)(g)+Cl(g)rarrO_(2)(g)+ClO(g),k_(1)=5.2xx10^(9)L"mol"^(-1)sec^(-1)`
`ClO(g)+O(g)rarrCl(g)+O_(2)(g),k_(2)=2.6xx10^(10)L"mol"^(-1)sec^(-1)`
Which of theses values is closest to the rate constant of the overall reaction ?
`O_(3)(g)+O(g)rarr2O_(2)(g)`

A

`5.2xx10^(9)" L mol"^(-1) s^(-1)`

B

`2.6xx10^(10)" L mol"^(-1) s^(-1)`

C

`3.1xx10^(10)" L mol"^(-1) s^(-1)`

D

`1.4xx10^(20)" L mol"^(-1) s^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
A
Slowest step decides the rate constant of overall reaction. So, rate constant of first step is closest to rate constant of overall reaction.
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