Table 4 Values of thermodynamic adsorption parameters for the inhibitors on steel in 1 M HCl from the mass loss technique at different temperatures.

Surfactant name

Temp.,

\(\:\varvec{K}\)

\(\:{\varvec{K}}_{\varvec{a}\varvec{d}\varvec{s}}\)

L g^− 1

\(\:\varDelta\:{\varvec{G}}_{\varvec{a}\varvec{d}\varvec{s}}^{^\circ\:}\)

kJ mol^− 1

\(\:\varDelta\:{\varvec{H}}_{\varvec{a}\varvec{d}\varvec{s}}^{^\circ\:}\)

kJ mol^− 1

R²

\(\:\varDelta\:{\varvec{S}}_{\varvec{a}\varvec{d}\varvec{s}}^{^\circ\:}\)

J mol^− 1