t1/4 can be taken as the time taken for the concentration of a reactant to drop to 4/3 of its value. If the rate constant for a first order reaction is K, the t1/4 can be written as: t1/4 can be taken as the time taken for the concentration of a reactant to drop to 4/3 of its value. If the rate constant for a first order reaction is K the t1/4 can be written as: June 2, 2021 Category: AIIMS Last 24 Years Solved 1996 - 2019 Physics and Chemistry Video Solutions , Chapter 17 - Chemical Kinetics , Chemistry , Facebook Messenger WhatsApp Share this:TwitterFacebook Related