For the formation of 1 mol of nitrosyl chloride at a given temperature,ΔH = -38 kJ.
NO(g) + 1/2 Cl₂(g) → NOCl(g)
The activation energy for this reaction is 69 kJ/mol.What is the activation energy for the reverse reaction?

Question

Quizplus · Accepted Answer

The activation energy for the reverse reaction can be found by adding the enthalpy change of the reaction (ΔH) to the activation energy of the forward reaction. Therefore, for the reverse reaction, the activation energy is 69 kJ/mol (forward reaction) + 38 kJ/mol (ΔH, added because it's exothermic for the forward reaction) = 107 kJ/mol.

For the Formation of 1 Mol of Nitrosyl Chloride at a Given