Table 2. ΔH, ΔS, and ΔG Values for Pristine and Annealed Samples.

absorbance	T (K)	Ea (J/mol)	ΔH (kJ/mol)	ΔG (kJ/mol)	ΔS (J/mol)
1.39	923.15	97.70	7.77	–2.53	11.16
1.12	873.15		7.36	–0.82	9.37
0.61	823.15		6.94	3.38	4.32
0.16	773.15		6.53	11.78	–6.80
0.02	663.15		5.62	21.05	–23.28