Influence of Linear Alkyl Benzene Sulphonate on Corrosion of Iron in Presence of Magnetic Field: Kinetic and Thermodynamic Parameters

Table 2

Kinetic and thermodynamic parameters of corrosion in HCl solution in the presence of magnetic field.

[HCl](M)	[LAS] (ppm)	T(∘C)	RC(mg/cm^2⋅sec.)	Ea(kJ/mol)	Δ𝐻^≠∗ (kJ/mol)	Δ𝑆^≠ (J/mol⋅K)
1.0	0.0	20	1.2×10^−4	92.5	90.1	−12.5
1.0	200	20	1.5×10^−4	86.3	83.9	−31.8
1.0	600	20	2.3×10^−4	78.1	75.7	−56.2
1.0	1000	20	1.6×10^−4	90.3	87.9	−17.6
2.0	0.0	20	1.3×10^−4	64.1	61.7	−108.7
2.0	200	20	1.1×10^−4	68.0	65.6	−96.8
2.0	600	20	1.4×10^−4	67.0	64.6	−98.2
2.0	1000	20	1.4×10^−4	64.7	62.3	−106.0

∗Calculated based on the assumption of unimolecular reaction where 𝐸_𝑎=Δ𝐻^≠+RT [25].