A first order reaction is 50% completed in 20 minutes at 27C and in 5 min at 47C. The energy of activation of the reaction is A first order reaction is 50% completed in 20 minutes at 27C and in 5 min at 47C. The energy of activation of the reaction is June 3, 2021 Category: Chapter 7 - Chemical Kinetics and Nuclear Chemistry (Level 1 and Level 2) , N Awasthi Physical Chemistry , Facebook Messenger WhatsApp Share this:TwitterFacebook Related