A 20 seconds Proof of 1=-1 | Meme

The rate of a first-order reaction is 0.04 "mol L"^(-1) s^(-1) at 10 seconds and 0.03 "mol L"^(-1) s^(-1) at 20 seconds after initiation of the reaction. The hlaf-life period of the reaction is :

Two radioactive samples 1 and 2 have equal number of nuclei initially. They have halg-lives of 10 seconds and 20 seconds. The ratio of number of nuclei of 1 and 2 at t=60 seconds is :

The rate of a first-order reaction is 0.04 mol L^(-1)s^(-1) at 10 seconds and 0.03 mol L^(-1)s^(-1) at 20 seconds after initiation of the reaction. The half-life period of the reaction is