Kinetics and Mechanism of the Reaction between Chromium(III) and 2,3-Dihydroxybenzoic Acid in Weak Acidic Aqueous Solutions

Table 2

Activation parameters for steps A−−→^𝑘2B and B−−→^𝑘3C.

Δ𝐻^≠2(obs); (kJ mol^-1)	Δ𝑆^≠2(obs); (JK^-1 mol^-1)	Δ𝐻^≠3(obs); (kJ mol^-1)	Δ𝑆^≠3(obs); (JK^-1 mol^-1)
61.2 ± 3.1	−91.1 ± 11.0	124.5 ± 8.7	95.1 ± 29.0