Red phosphorus reacts with liquid bromine in an exotermic reaction `:` `2P_((s))+3Br_
Channel: Doubtnut
Date: 2020-08-02

Red phosphorus reacts with liquid bromine in an exotermic reaction `:` `2P_((s))+3Br_(2(l))rarr2PBr_(3(g))` `Delta_(r)H^(@)=-243kJ`. Calculate the enthalpy change when `2.63g` of phosphorus with an excess of bromine in this way.