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For a first order reaction velocity cons...

For a first order reaction velocity constant , `K = 10^(-3) s^(-1)` . Two third life for it would be

A

`1100` s

B

`2200` s

C

`3300` s

D

`4400` s

Text Solution

Verified by Experts

The correct Answer is:
A
We know that `k=(2.303)/(t)log.(a)/(a-x)`
`10^(-3)=(2.303)/(t)log.(a)/((a-(2a)/(3))),10^(-3)=(2.303)/(t)log3`
`10^(-3)=(2.303)/(t)xx0.4771,t=(2.303xx0.4771)/(10^(-3))`
= `1098.7s~~1100s`
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