1.

The rate of a first order reaction is 1.5xx10^(-2) mol L^(-1) "min"^(-1) at 0.5 M concentration of the reactant . The half life of the reaction is :

Answer»

`23.1 min`
`8.73 ` min
`7.53 ` min
`0.383 `min

SOLUTION :( B) RATE =K [C]
`k= ("Rate")/([C])`
`=(1.5xx10^(-2))/(0.5) `
`3xx10^(-2)`
`t_(1//2)= (0.693)/(3xx10^(-2))`
= 23.1 min


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