Research Article

An Ecofriendly Initiative for the Corrosion Inhibition of Mild Steel in 1 M HCl Using Tecoma capensis Flower Extract

Table 5

Thermodynamic adsorption parameters.

SystemFree energy of adsorption (kJ/mol)
J/mol

kJ/mol
303 K313 K323 K333 K343 K353 K

1 M HCl + 0.7% TCF−15.5−16.1−19.0−18.0−17.2−17.0−27.5−8.1