University Chemistry ›› 2018, Vol. 33 ›› Issue (6): 65-70.doi: 10.3866/PKU.DXHX201712045

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Discussion on the nth Order Reaction and Its Half-Life in Physical Chemistry

Zuopeng LI1,Jianpeng SHANG1,Meixia WU1,Caina SU1,Ziying GUO1,Sanbing ZHANG2,Yong GUO1,*()   

  1. 1 School of Chemistry and Environmental Engineering, Shanxi Datong University, Datong 037009, Shanxi Province, P. R. China
    2 Department of Applied Chemistry, College of Sciences, China Agricultural University, Beijing 100193, P. R. China
  • Received:2017-12-29 Published:2018-06-01
  • Contact: Yong GUO
  • Supported by:


Comparing with integral and differential means, the half-life mean derived from nth order reaction to confirm reaction order is more reliable and universal. However, the derivation processes in textbooks are not clear. In this paper, we discussed the derivation processes of nth order reaction and its half-life in details using four different ways. It is beneficial for students to deepen the understanding of derivation processes about nth order reaction and its half-life.

Key words: nth order reaction, Half-life, Differential form, Integral form, Derivation