Effect of Temperature on the Corrosion Inhibition of Trans-4-Hydroxy-4^′-Stilbazole on Mild Steel in HCl Solution

Table 4

The enthalpy of adsorption (Δ𝐻) for mild steel in 1 M HCl in the presence of 1×10⁻³M trans-4-hydroxy-4′-stilbazole inhibitor at various temperatures (303 K–343 K).

ΔH, kcal·mol^−1
303 K	313 K	323 K	333 K	343 K
26.33	26.31	26.29	26.27	26.25