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

Table 1

Kinetic and thermodynamic parameters of corrosion process in HCl solution in the absence 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	1.3×10^−4	92.3	89.6	−13.9
		30	5.2×10^−4
		40	1.6×10^−3
		50	4.5×10^−3
1.0	200	20	1.6×10^−4	86.1	83.1	−33.7
		30	5.1×10^−4
		40	1.8×10^−3
		50	4.0×10^−3
1.0	600	20	2.5×10^−4	77.9	74.9	−58.8
		30	5.9×10^−4
		40	1.9×10^−3
		50	4.7×10^−3
1.0	1000	20	1.7×10^−4	90.1	87.1	−19.9
		30	5.9×10^−4
		40	1.9×10^−3
		50	5.0×10^−3
2.0	0.0	20	1.4×10^−4	63.6	61.1	−110.2
		30	3.3×10^−4
		40	7.6×10^−4
		50	1.5×10^−3
2.0	200	20	1.2×10^−4	67.8	65.7	−95.4
		30	3.3×10^−4
		40	8.0×10^−4
		50	1.6×10^−3
2.0	600	20	1.5×10^−4	66.8	64.4	−99.3
		30	3.0×10^−4
		40	8.2×10^−4
		50	1.8×10^−3
2.0	1000	20	1.5×10^−4	64.6	61.4	−109.2
		30	3.4×10^−4
		40	6.7×10^−4
		50	1.9×10^−3