For a first order reaction A B , the reaction rate at reactant concentration of 0.01 M is found to be 2.0 10⁻⁵ ~mol ~L ⁻¹ ~s ⁻¹ . The half-life period of the reaction is

Step-by-step solution

For first order reaction A B Given that rate =k [A] Rate =2.0 10⁻⁵ ~mol ~L ⁻¹ ~s ⁻¹[A]= Conc. of A=0.01 M So, 2.0 10⁻⁵=k 0.01 aligned k & = 2.0 10⁻⁵ 0.01 ~s ⁻¹ & =2.0 10⁻³ ~s ⁻¹ aligned For first order reaction aligned T_ 1 / 2 & = 0.693 k = 0.693 2.0 10⁻³ & =346.5 347 ~s aligned