Table 6 Activation energy parameters at different concentrations of hexane and acetone extract.

From: Vicia faba peel extracts bearing fatty acids moieties as a cost-effective and green corrosion inhibitor for mild steel in marine water: computational and electrochemical studies

Extract

Conc. (ppm)

Ea (KJ/mol)

∆Hoa (KJ/mol)

∆Soa (J/mol/K)

Blank

16

7

− 236

Hexane extract

50

100

150

200

16

19

20

21

16

16

15

14

− 212

− 215

− 219

− 225

Acetone extract

50

100

150

200

15

16

19

20

15

16

16

15

− 213

− 212

− 215

− 219

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