A first order reaction is 20 % complete in 10 minutes. Calculate
Specific rate constant of the reaction

Explanation

At time, t = 10 min
`[A] = 0.8 [A]_(0)" or" (k =(2.303)/(10) log"" (80)/(100))`
`:. 0.8 [A]_(0) = [A]_(0) e^(-10k)`
`implies k=0.022 min^(-1)`