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In a certain reaction, 10% of the reacta...

In a certain reaction, `10%` of the reactant decomposes in one hour, `20%` in two hours, `30%` in theee hours, and so on. The dimenison of the velocity constant (rate constant) are

A

`"hour^(-1)`

B

mol `"lit"^(-1)sec^(-1)`

C

lit `"mol"^(-1) sec^(-1)`

D

`"mol sec"^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
B
If the amount of products formed which is 10%, 20% and 30% is plotted against time i.e., 1 hr, 2 hr and 3 hr respectively, it is a straight line passing through the origin.
`therefore` it is a zero order reaction where x = kt
`rArr " "(x)/(t) =k`
`therefore` dimensions of k= moles `"lit"^(-1) sec^(-1)`
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