Table 5.

Phosphorus (P) adsorption thermodynamics calculation of Mg/biochar and biochar.

Sample	T	∆H	∆G	∆S
B300	288	10.8	−2.26	45.4
	303		−2.39	43.6
	318		−2.43	41.6
B450	288	10.3	−2.30	43.7
	303		−2.39	41.8
	318		−2.48	40.1
B600	288	9.87	−1.95	41.0
	303		−2.17	39.7
	318		−2.18	37.9
Mg/B300	288	10.7	−1.82	43.4
	303		−2.07	42.1
	318		−2.15	40.3
Mg/B450	288	13.5	−1.61	52.3
	303		−1.82	50.4
	318		−1.92	48.3
Mg/B600	288	20.3	−1.53	75.7
	303		−1.61	72.2
	318		−1.72	69.2