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Identify giving reasons, the reaction or...

Identify giving reasons, the reaction order from each of the following rate constants :
(i) `k = 2.3 xx 10^(5) L mol^(-1) s^(-1)`
(ii) `k = 3 xx 10^(-4) s^(-1)`

Text Solution

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Unit of rate constant for `n^(th)` order
`k = ("mol lit"^(-1))^(1-n) s^(-1)`
(i) `k = 2.3 xx 10^(5)L mol^(-1) s^(-1)`
We will get these units when value of n = 2, or order is (two)
`k = ("mol lit"^(-1))^(1-2) s^(-1)`
`= mol^(-1) "lit sec"^(-1)`
(ii) `k = 3 xx 10^(-4)s^(-1)`
We will get these units when value of n=1, or order is (one)
`k = ("mol lit"^(-1))^(1-1)s^(-1)`
`=s^(-1)`
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