从燃烧热测量求算化学反应热——“燃烧热的测定”实验改进

江豪, 淳远, 李唐, 张开宇, 杨立军, 高卫, 杨金月

Reaction Enthalpy Calculations via Heat of Combustion Determination: Modifying a Classic Experiment "Determining the Heat of Combustion"

Hao Jiang, Yuan Chun, Tang Li, Kaiyu Zhang, Lijun Yang, Wei Gao, Jinyue Yang

表1 待测物质的燃烧热

样品 室温/K ΔcHm/(kJ∙mol−1) ΔcHm (298.15 K)/(kJ∙mol−1) ΔcHmƟ (298.15 K) */(kJ∙mol−1) 相对误差/% 萘 287.95 −5145.6 −5145.8 −5153.8 −0.16 邻二甲苯 289.75 −4542.9 −4543.2 −4552.9 −0.21 邻苯二甲酸 288.25 −3220.9 −3221.0 −3223.5 −0.08 邻苯二甲酸酐 289.15 −3252.3 −3252.8 −3259.4 −0.20