Ch ical chemistr Reaction Kinetic Rate laws Reaction Rate law klh, Br 1/2 H+B→2HB 1+jHBr[Br2 H2+2→>2团 kle2ll21 2N2O5>4MO2+02 CH2CHO→CH4+CO r=k[cH3CHOF/28 Physical Chemistry Rate Laws Reaction Rate Law H Br 2HBr 2 + 2 →        2 1/ 2 2 2 1 j HBr / Br k H Br r + = 2N2 O5 → 4NO2 +O2 H I 2HI 2 + 2 →    2 2 r = k H I   N2 O5 r = k CH3 CHO →CH4 +CO   3/ 2 r = k CH3 CHO Reaction Kinetics