According to Arrhenius concept,
K=Ae−Ea/RT
Given that,
K=(K1.K2)/K3
Using Arrhenius equation we can expand above equation as
e−Ea(net)/RT=e−Ea3/RTe−Ea1/RT×e−Ea2/RT
Hence,
Ea(net)=Ea1+Ea2−Ea3⇒Ea(net)=40+50−60=30kJ/mol
For a reaction taking place in three steps at same temperature, overall rate constant K=K3K1K2. If Ea1,Ea2 and Ea3 are 40,50 and 60kJ/mol respectively, the overall Ea is _________ kJ/mol.
Held on 29 Jan 2024 · Verified 6 Jul 2026.
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