本文根据热动力学的基础理论,建立了等浓度三级反应的无量纲参数法,并用此法研究了甲醛与氨反应的热动力学.实验测得的速率常数与文献值吻合. In this paper, based on the basic theory of thermodynamics, the dimensionless parameter method of isoconcentration third-order reaction was established, and the thermokinetics of the reaction between formaldehyde and ammonia was studied by this method. The experimental data agree well with the literature data.