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Table 4 Thermodynamic parameters for the adsorption of Cr(VI) by sour cherry kernel shell powder (R-SCKS) and chitosan-coated sour cherry kernel shell powder beads (C-SCKS)

From: Chitosan-coated sour cherry kernel shell beads: an adsorbent for removal of Cr(VI) from acidic solutions

Cr(VI) adsorbents ΔH° (J.mol−1) ΔS° (J.K− 1 mol−1) ΔG°(J.mol−1)
T = 298.15 K T = 308.15 K T = 323.15 K T = 338.15 K
R-SCKS 0.01 14.00 − 4104.98 − 4315.02 − 4525.07 − 4735.11
C-SCKS 0.06 27.81 − 8153.21 − 8570.40 − 8987.59 − 9404.78