Removal of Heavy Metal Ions (Pb²⁺, Co²⁺, and Cd²⁺) by Activated Carbon from Cypress Fruit: An Investigation of Kinetics, Thermodynamics, and Isotherms

Table 5

Thermodynamic parameters of metal ion removal by ACC.

Metal ion	T (K)	Thermodynamic parameters
		∆G° (kJ mol^−1)	∆H° (kJ mol^−1)	∆S° (kJ K^−1·mol^−1)
Pb	298	12.45	22.24	33.22
	308	12.01
	318	11.79
Co	298	15.81	21.08	17.76
	308	15.56
	318	15.46
Cd	298	17.68	34.26	56.12
	308	16.66
	318	16.57