99% of a first order reaction, was completed in 32 minute. When will 99.9% of the reaction complete? 99% of a first order reaction was completed in 32 minute. When will 99.9% of the reaction complete? 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