If the concentration is expressed in mol...

If the concentration is expressed in mol `dm^(-3)` and time in seconds, the unit of the rate constant for a first-order reaction will be

mol `dm^(-3)s^(-1)`

`s^(-1)`

`dm^(3)mol^(-1)s^(-1)`

`dm^(-3)mol^(-1)s^(-1)`

Verified by Experts

The correct Answer is:

For a first order reaction,
`dx/dt=k[A]`
`k=("mol "dm^(-3) s^(-1))/("mol "dm^(-3))=s^(-1)`

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