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Thermodynamic parameters calculated from the Langmuir isotherm constant, K L, and activation energy calculated from the pseudo-second-order rate equation, k 2, for the adsorption of lead (II) ions onto the activated carbon (SAC2).
| T (K) |
E
a
(kJ mol−1) |
ΔG° (kJ mol−1) |
ΔH° (kJ mol−1) |
ΔS° (J K−1 mol−1) |
|---|---|---|---|---|
| 298.15 | −0.74 | |||
| 308.15 | 9.02 | −0.99 | 9.46 | 34.15 |
| 318.15 | −1.40 |
