810.2 Mechanism assumption and Approximate treatment 10.2.1 Approximation treatment of complex reaction mechanism (4)Apparent activation energy (eaapp and e of elementary reactions △ k r=k,[H[HNO, Br EE a22 E a, app k E r=kh THNO,Br E.+E..-E Whether or not the activation energy app a,+ combination of elementary step is consistent to For some reaction with certain reaction order the eapp of overall reaction may be expressed as a the apparent activation energy of the overall activation energy combination of some reaction is the other important criterion for elementary steps examination on reaction mechanism(4) Apparent activation energy (Ea,app) and Ea of elementary reactions + 2 2 [H ][HNO ][Br ] k r k k + − − = Ea,app = Ea,2 + Ea,+ − Ea,− + 2 r k[H ][HNO ][Br ] − = 10.2.1 Approximation treatment of complex reaction mechanism For some reaction with certain reaction order, the Eapp of overall reaction may be expressed as a activation energy combination of some elementary steps. Whether or not the activation energy combination of elementary step is consistent to the apparent activation energy of the overall reaction is the other important criterion for examination on reaction mechanism. §10.2 Mechanism assumption and Approximate treatment