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Find out time period of Ist order reacti...

Find out time period of Ist order reaction. When reaction complete `(2)/(3)` rd. if the value of rate constant is `4.3xx10^(-4)`

A

`0.0025xx10^(3)`sec

B

`0.25xx10^(3)sec`

C

`0.025xx10^(3)sec`

D

`2.5xx10^(3)sec`

Text Solution

Verified by Experts

The correct Answer is:
D
`R to P` `{:(a,,),(a-x,,x=(2)/(3)a),(,a-(2)/(3)a,=(1)/(3)a),(t=(2.3)/(4.3xx10^(-4)),,"log"(a)/((a)/(3))),(=2.5xx10^(+3),,):}`
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