Synergetic Effect between Phenolic Extracts of Ammi visnaga and Zea mays Formulation on the Corrosion of Mild Steel in 1 M HCl Solution

Table 4

Activation parameters for mild steel in 1 M HCl with and without 0.01 gL⁻¹ HE (AV)/0.2 gL⁻¹ HE (ZM).

Inhibitor	A	Ea (kJ mol^−1)	ΔH∗ (kJ mol^−1)	ΔS∗ (J K^−1 mol^−1)
Blank	6.05 10^4	42.6	39.80	−145.50
Mixture	4.34 10^5	45.8	31.07	−239.04