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The rate of the first-order reaction X r...

The rate of the first-order reaction `X rarr` products is `7.5 xx 10^(-4) mol L^(-1) "min"^(-1)`. What will be value of rate constant when the concentration of `X` is `0.5 mol L^(-1)` ?

A

`3.75 xx 10^(-4) sec^(-1)`

B

`2.5 xx 10^(-5) sec^(-1)`

C

`1.5 xx 10^(-3) sec^(-1)`

D

`8xx 10^(-4) sec^(-1)`

Text Solution

Verified by Experts

`r = k[A]^1`,
`7.5xx 10^(-4) - kxx0.5`,
`:. K = 15 xx10^(-4) sec^(-1)= 1.5 xx 10^(-3)sec^(-1)`
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