Reaction of Chromium(III) with 3,4-Dihydroxybenzoic Acid: Kinetics and Mechanism in Weak Acidic Aqueous Solutions

Table 2

Activation parameters for steps 1(𝑘_1(obs)) and 2(𝑘₂≪𝑘₃).

Δ𝐻^≠1(obs)(kJmol^−1)	Δ𝑆^≠1(obs)(Jmol^−1K^−1)	Δ𝐻^≠2(obs)(kJmol^−1)	Δ𝑆^≠2(obs)(Jmol^−1K^−1)
51.2±11.5	−97.3±28.9	44.5±5.0	−175.8±70.3