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通过所获得的4种氨基酸(丙氨酸Ala,甘氨酸Gly,丝氨酸Ser及酪氨酸Tyr)在氨基酸-KBrO-3-Mn2+-H2SO4-丙酮振荡体系的动力学参数(诱导期及周期的速率常数kin、kp及表观活化能Ein、Ep)及Oregonator模型和不可逆过程热力学理论,获得了该振荡体系的热力学函数(ΔHin,ΔGin,ΔSin及ΔHp,ΔGp,ΔSp)。结果表明,该振荡体系的诱导期和周期的熵变ΔSin和ΔSp均为负值,从而进一步证明化学振荡反应是具有耗散结构的非平衡态体系。这与振荡反应从无序到有序的特征及不可逆过程热力学完全相符,从而圆满解释了实验现象。
The kinetic parameters of the amino acid-KBrO-3-Mn2 + -H2SO4-acetone oscillating system (the constants of induction and period of the four amino acids Ala, Gly Gly, Ser Ser and Tyr Tyr) (ΔHin, ΔGin, ΔSin and ΔHp, ΔGp, ΔSp) of the oscillatory system were obtained by using the kon kp, apparent activation energy Ein, Ep and the Oregonator model and the theory of irreversible thermodynamics. The results show that the entropy change ΔSin and ΔSp during the induction period and the period of the oscillation system are both negative, which further proves that the chemical oscillation reaction is a non-equilibrium system with dissipative structure. This is in complete agreement with the chaotic oscillation from disorder to order and the thermodynamics of irreversible processes, thus satisfactorily explaining the experimental phenomena.