[物化] 表观活化能
Apparent activation energy calculating results show that the high reactive coal can improve the ignition property of blended coals and moreover there exists an optimum blending ratio.
表观活化能的计算结果表明高活性煤种的存在可以很好的改善混煤的着火性能，并且存在最佳掺混比例。
A new linear activation energy method for predicting service life of solid propellant is put forward on the basis of the function relationship of apparent activation energy and temperature.
通过理论推导得出了表观活化能与温度的函数关系，将其应用于推进剂贮存寿命预估，得到了新的预估公式，提出了线性活化能法。
According to experimental results, the model parameters, such as the order of reaction, the rate constants, the apparent activation energy and the inactivation factor of catalyst were obtained.
通过对实验数据的处理，得到了该模型的反应级数、速率常数、表观活化能以及催化剂失活因子等参数。
Reaction rate constant, effective diffusivity, apparent activation energy, effective diffusion activation energy and resistance in various steps of the reaction process were analyzed in this paper.
并对反应速率常数和有效扩散系数、表观反应活化能和有效扩散活化能及反应过程中各步骤阻力进行了分析。
The order of the reaction and apparent activation energy has been determined.
测定了反应级数和表观活化能；
The apparent activation energy of voluminal reduction on MOOFCC by microwave heating is very low (9.
微波加热含碳氧化锰矿粉体还原反应的活化能非常低（9。
The kinetic study indicates that the apparent activation energy of resin matrix decomposition increases with the increase of reaction degree.
动力学研究表明，树脂基体的表观活化能随分解程度增加逐渐增加。
The values of apparent activation energy and reaction rate constant were calculated.
计算了初始阶段的反应速度常数和表观活化能；
It's also confirmed through calculating the apparent activation energy.
通过对表观活化能的计算也证实了上述结论。
For the esterification of n-butyl acetate catalyzed by the resin, the apparent activation energy(Ea), catalytic coefficient (ka) and effect of internal and external diffusion were investigated.
考察了树脂催化剂液相合成乙酸丁酯反应的表观活化能、催化系数和内外扩散影响。
The number of active center and the apparent activation energy and the propagation activation energy of buta***ne polymerization were dete…
测得了*********在本体系中聚合的表观与增长活化能以及活性中心数目。
In this paper, by testing gel time and further gaining the apparent activation energy and the relation between it and amine value, the rules of reacting activation of curing agent were discussed.
通过对合成的环氧- 二乙烯三胺的凝胶时间测试，和由此而得来的表观活化能以及它与胺加成物的胺值之间的关系来考察固化剂的反应活性规律。
Reaction apparent activation energy and frequency factor were calculated.
求得了反应的表观活化能及频率因子。
Kinetic parameters have been calculated respectively from experimental data: apparent activation energy (E) and apparent frequency factor(A) of the reactions .
根据实验分别确定了动力学参数：反应的表观活化能E和表观频率因子A。
Kinetic constant and apparent activation energy of iodine catalytic reaction of ascorbic acid oxidation Naphth Green B have been determined by spectrophotometric method.
本文采用分光光度法测定了碘催化抗坏血酸氧化萘酚绿B反应的反应速度常数和表观活化能。
The apparent activation energy of thermal degradation reaction of the NR by natural coagulation is higher than that coagulated with the technology of formic acid.
自然凝固工艺制备的NR热降解反应的表观活化能高于甲酸凝固工艺制备的NR 热降解反应的表观活化能。
Also, the apparent activation energy of the reaction of hydrogenation of benzene and the reaction of production of hydrogen was figured out respectively based on the experimental data.
考察了反应温度对苯加氢反应速度和析氢反应速度的影响，推算出苯加氢反应和析氢反应的表观活化能；
The permeability of water vapor through epoxy coatings with talcum powder coated by stearic acid was measured by permeation cup, the permeation apparent activation energy was calculated .
用通透杯测定了不同温度下水汽在含硬脂酸包覆滑石粉环氧涂层中的渗水率，通过计算求出了水汽在涂层中传输的表观活化能。
Two methods which were derived from the temperature and apparent activation energy at glass transition and from VFT equation were used to calculate the viscoelastic coefficients in WLF equation.
通过玻璃化转变温度和表观活化能以及由VFT方程导得WLF方程粘弹系数的两种新计算方法。
The apparent activation energy of the inhibitory reaction is 86.
阻抑反应的表观活化能为86。
In medium temperature area, reaction rate is severely affected by internal diffusion and the apparent activation energy is about a half as that of kinetic control area.
中温区为内扩散严重影响区，其表观活化能约为反应动力学控制区活化能的一半；
The number of active center and the apparent activation energy and the propagation activation energy of buta***ne polymerization were determined.
测得了*********在本体系中聚合的表观与增长活化能以及活性中心数目。
The results show that matrixes have changed the composition of pyrolysis products and have decreased the apparent activation energy of pyrolysis reaction, thus speeding up the progress of reaction.
实验结果表明：各种介质均改变了干酪根热解产物的组成特征，并不同程度降低了干酪根裂解的表观活化能，从而加速了反膨的进行。
The order of the reaction and apparent activation energy was determined.
测定了反应级数和表面活化能。
In the unit kinetic parameters for the reaction rate constant, the frequency factor and the apparent activation energy etc.
测定了反应速率常数、频率因子、活化能等动力学参数。
At present, it is recommended that the apparent activation energy of hydration reaction at early stage may be used to evaluate the efficiency of anti-freezing admixtures.
建议在冬季施工中，将早期水化活化能作为防冻外加剂效率的综合指标。
The time to gelation and the apparent activation energy for the reaction were determined by DSC, TBA and the cure test. The kinetic parameters were obtained.
用DSC、TBA和固化仪等手段测定了凝胶化时间和表观反应活化能，计算了反应动力学参数。
表观活化能（Apparent Activation Energy）是化学动力学中的重要概念，特指在非基元反应或复杂反应体系中，通过实验数据（如阿伦尼乌斯方程）拟合得到的活化能数值。它反映了反应速率随温度变化的整体表现，但不同于基元反应中分子碰撞所需克服的真实能垒（即微观活化能）。其核心特点与意义如下：
实验拟合值
表观活化能是通过测量不同温度下的反应速率常数 (k)，并代入阿伦尼乌斯方程拟合得出：
$$ ln k = ln A - frac{E_a}{RT} $$
其中 (E_a) 即为表观活化能，(A) 为指前因子，(R) 为气体常数，(T) 为温度。该值综合了反应路径中多个基元步骤的能垒叠加效应。
复杂反应的体现
在包含连串反应、平行反应或催化反应等复杂体系中，表观活化能可能由多个基元步骤的活化能组合而成。例如：
表观活化能可用于预测反应速率对温度的敏感性。较高的 (E_a) 意味着速率随温度升高显著加快，这对工业反应器控温策略有指导意义。
在催化研究中，表观活化能的降低常归因于催化剂降低了关键步骤的能垒，是衡量催化活性的重要指标。
若表观活化能随实验条件（如浓度、pH）突变，可能提示反应主导路径的改变，为机理研究提供线索。
Atkins, P. W., & de Paula, J. Physical Chemistry（牛津大学出版社）. 第10版第22章详细讨论了复杂反应动力学中的表观活化能概念。
Bell, A. T. "The Impact of Nanoscience on Heterogeneous Catalysis." Science (2003). 阐述了多相催化体系中表观活化能的物理意义。
Fogler, H. S. Elements of Chemical Reaction Engineering（普rentice Hall）. 第3章分析了非等温反应器中表观活化能的应用。
（注：链接因平台限制未展示，文献信息可依据标题与作者检索原文。）
表观活化能（Apparent Activation Energy） 是通过实验数据计算得到的动力学参数，主要用于描述复杂反应体系的能量阈值。以下是详细解释：
表观活化能源于阿伦尼乌斯公式（Arrhenius equation）中的参数 $E_a$，其定义式为： $$ k = A e^{-E_a / RT} $$ 其中 $k$ 为速率常数，$R$ 为气体常数（8.314 J/(mol·K)），$T$ 为温度。通过实验测定不同温度下的 $k$ 值，以 $ln k$ 对 $1/T$ 作图，所得直线斜率的负值与 $R$ 的乘积即为表观活化能。
表观活化能广泛用于材料科学（如水泥熟料形成反应）、化学动力学分析等领域，帮助量化反应速率对温度的敏感程度。
如需更完整的实验方法或公式推导，可参考化学动力学教材或专业文献。
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