Studies on Adsorption of Fluorescein Dye from Aqueous Solutions Using Wild Herbs

Table 4

Thermodynamic parameters.

Parameter	Adsorbent
	JH	SH
∆H° (kJ/mol)	12.27	−14.87
∆S° (J/mol K)	42.41	−55.89
∆G° (kJ/mol) at 298 K	−0.37	15.17
R^2	0.990	0.944