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

Multiple Choice

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?

A) 69 kJ/mol
B) 31 kJ/mol
C) 107 kJ/mol
D) -38 kJ/mol
E) -107 kJ/mol