KI-H_2O_2封闭体系热动力学研究

Nonlinear thermokinetics in KI-H_2O_2 reaction system

利用微量量热仪测定碱性条件下KI-H2O2体系热功率-时间曲线.测定了不同浓度,不同温度下,体系的单峰振荡行为,得到了不同温度、不同浓度下的振荡周期,并由此计算出振荡反应的表观活化能和反应级数,并得到下列关系:In t1=c-10.335 5.exp-6 1T49.8.

The oscillation reaction in KI-H2O2 system was studied using Calorimeter. From the experimental results,the oscillating period was obtained, and the apparent activation energy and reaction order were calculated.