Gasesous cyclobutane isomerizes to butadiene following first order process which has half life of `150.5` minute at certain temperature. How long will take for the process to occur to the extent of `40%` at the same temperature ?

Options

A. 103 minutes
B. 121 minutes
C. 111 minutes
D. None of these

Answer

3

Explanation

`k=(0.693)/(t_(1//2))=(0.693)/(150.5)mi n^(-1),t=(2.303)/(k)log.(100)/(100-40)=(2.303xx150.5)/(0.693)log.(100)/(60)=111` minutes