Activation energy - 1 | Chemical Kinetics: Mechanisms
General Chemistry 2 - Activation energy - 1
For a reaction, the value of ΔHrxn = -20 kJ.mol-1 and the value of the activation energy is 40 kJ.mol-1.
What is the energy of the activation energy in the reverse direction?
Ea (forward reaction) = Ea (reverse reaction) + ΔHrxn
⇒ Ea (reverse reaction) = Ea (forward reaction) - ΔHrxn = 40 + 20 = 60 kJ.mol-1