The activation energy for the reaction given below is 125 kJ/mol, and ΔE for the reaction is -216 kJ/mol.

Question

The activation energy for the reaction given below is 125 kJ/mol, and ΔE for the reaction is -216 kJ/mol.
NO2(g) + CO(g)  NO(g) + CO2(g)

What is the activation energy for the reverse reaction [NO(g) + CO2(g)  NO2(g) + CO(g)]?

DrBob222 · Accepted Answer

Ea reverse = Ea fwd + dH reverse Ea reverse = 125 + (+216) = ? KJ/mol