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反应速率
The rate of reaction is the change in the amount of a reactant or product per unit time. Reaction rates are therefore determined by measuring the…
测量反应速率
Polarimetry finds application in chemical kinetics to measure the concentration and reaction kinetics of optically active substances during a…
浓度和速率定律
The rate of a reaction is affected by the concentrations of reactants. Rate laws (differential rate laws) or rate equations are mathematical…
确定反应顺序
Rate laws describe the relationship between the rate of a chemical reaction and the concentration of its reactants. In a rate law, the rate constant…
积分速率定律:浓度对时间的依赖
While the differential rate law relates the rate and concentrations of reactants, a second form of rate law called the integrated rate law relates…
反应半衰期
The half-life of a reaction (t1/2) is the time required for one-half of a given amount of reactant to be consumed. In each succeeding half-life, half…
反应速率的温度依赖性
The Collision Theory Atoms, molecules, or ions must collide before they can react with each other. Atoms must be close together to form chemical…
阿伦尼乌斯图
The Arrhenius equation relates the activation energy and the rate constant, k, for chemical reactions. In the Arrhenius equation, k = Ae−Ea/RT,…
反应机理
Chemical reactions often occur in a stepwise fashion, involving two or more distinct reactions taking place in a sequence. A balanced equation…
速率确定步骤
Relating Reaction Mechanisms In a multistep reaction mechanism, one of the elementary steps progresses significantly slower than the others. This…
催化
The presence of a catalyst affects the rate of a chemical reaction. A catalyst is a substance that can increase the reaction rate without being…
酶
Inside living organisms, enzymes act as catalysts for many biochemical reactions involved in cellular metabolism. The role of enzymes is to reduce…
生物质转化为油气生产液体燃料通过热蒸汽过滤快速热解和催化加氢
Lignocellulosic biomass conversion to produce biofuels has received significant attention because of the quest for a replacement for fossil fuels.…
酶联反应合成 l-赖氨酸手性氨基醇的研究
Amino alcohols are versatile compounds with a wide range of applications. For instance, they have been used as chiral scaffolds in organic synthesis.…
连续流动化学: Diphenyldiazomethane 与<em>p</em>硝基苯甲酸的反应
Continuous flow technology has been identified as instrumental for its environmental and economic advantages leveraging superior mixing, heat…

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