A second-order reaction has a rate constant of 0.5 L mol⁻¹ min⁻¹. If the initial concentration is 0.2 mol L⁻¹, what is t
t½ = 1/(0.5×0.2) = 10 min.
Ref: NCERT Class 12 Chemistry > Chapter 3: Chemical Kinetics > Topic: Order and Molecularity and Units of Rate Constant