Table 5 Adsorption isotherms parameters of hexane and acetone extracts.

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

T (K)

R2

slope

Kads, (M−1)

\({G}_{ads}^{o}\) (KJ/mol)

\({H}_{ads}^{o}\) (KJ/mol)

\({S}_{ads}^{o}\) (J/mole/K)

Hexane extract

298

303

313

333

0.9998

0.9998

0.9998

0.9998

0.954

1.277

1.773

2.299

11,059

3147

2018

1351

− 33.8

− 31.6

− 31.6

− 31.6

− 71.98

− 159.6

Acetone extract

298

303

313

333

0.9998

0.9998

0.9998

0.9996

0.954

1.190

1.507

1.948

11,059

3141

2004

1342

− 32.7

− 29.6

− 29.6

− 29.6

− 69.52

− 146.2