Table 5 Adsorption isotherms parameters of hexane and acetone extracts.
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 |