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Глава 13
Скорость реакции
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…
Измерение скорости реакции
Polarimetry finds application in chemical kinetics to measure the concentration and reaction kinetics of optically active substances during a…
Закон о концентрации и скорости
The rate of a reaction is affected by the concentrations of reactants. Rate laws (differential rate laws) or rate equations are mathematical…
Определение порядка реакции
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…
Закон интегрированной скорости: зависимость концентрации от времени
While the differential rate law relates the rate and concentrations of reactants, a second form of rate law called the integrated rate law relates…
Период полураспада реакции
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…
Зависимость температуры от скорости реакции
The Collision Theory Atoms, molecules, or ions must collide before they can react with each other. Atoms must be close together to form chemical…
Графики Аррениуса
The Arrhenius equation relates the activation energy and the rate constant, k, for chemical reactions. In the Arrhenius equation, k = Ae−Ea/RT,…
Механизмы реакции
Chemical reactions often occur in a stepwise fashion, involving two or more distinct reactions taking place in a sequence. A balanced equation…
Шаги, определяющие скорость
Relating Reaction Mechanisms In a multistep reaction mechanism, one of the elementary steps progresses significantly slower than the others. This…
Катализ
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…
Ферменты
Inside living organisms, enzymes act as catalysts for many biochemical reactions involved in cellular metabolism. The role of enzymes is to reduce…
Каскад ферментативных реакций синтеза аминокислот хиральных спиртов от L-лизин
Amino alcohols are versatile compounds with a wide range of applications. For instance, they have been used as chiral scaffolds in organic synthesis.…
Непрерывный поток химия: Реакция Diphenyldiazomethane с <em>p</em>- Nitrobenzoic кислота
Continuous flow technology has been identified as instrumental for its environmental and economic advantages leveraging superior mixing, heat…

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