The rate constant of a certain first order reaction is `200S^(-1)`. What is its half life period ?

Explanation

Data : `k = 200^(-1)s^(-1)`
`t_(1//2) = ? `
Formula, `t_(1//2) = (0.693)/(k)`
`t_(1//2) = (0.693)/(200^(-1)) = 0.693 xx 200 = 138.6 s.`