Effective Remediation of Lead Ions from Aqueous Solution by Chemically Carbonized Rubber Wood Sawdust: Equilibrium, Kinetics, and Thermodynamic Study

Table 3

Thermodynamic parameters for lead adsorption (pH = 5.6, dose = 0.5 g/L, contact time = 180 min, and concentration = 20 mg/L).

(K)	(kJ/mol)	(J/K mol)	(kJ/mol)
303	+10.474	+51.332	−5.064
313			−5.627
323			−6.089