The decomposition of phosphine (PH3) on tungsten at low pressure is a first-order reaction . It is because the The decomposition of phosphine (PH3) on tungsten at low pressure is a first-order reaction . It is because the June 4, 2021 Category: Chapter 17 - Chemical Kinetics , Chemistry , NEET Last 32 Years Solved 1988 - 2019 Physics and Chemistry Video Solutions , Facebook Messenger WhatsApp Share this:TwitterFacebook Related