Pineapple Bark Performance in Dyes Adsorption: Optimization by the Central Composite Design

Table 1

Thermodynamic parameters of the adsorption process of DM on PB.

Temperature (°C)	ΔH° (KJ·mol^−1)	ΔS° (J·mol^−1·K^−1)	ΔG° (J·mol^−1)	R^2
20	−22.44	−51.68	−37591.20	0.9993
30			−38108.04
40			−38624.88
50			−39141.72