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Chapter 2

Thermodynamics and Chemical Kinetics

Химические реакции
Химические реакции
A balanced chemical equation provides the information of chemical formulas of the reactants and products involved in the chemical change. A ...
Энтальпия и теплота реакции
Энтальпия и теплота реакции
Combustion, commonly known as burning, is a reaction in which a substance reacts with an oxidizing agent, which in most cases is molecular oxygen, to ...
Энергетика образования растворов
Энергетика образования растворов
The formation of a solution is an example of a spontaneous process, which is a process that occurs under specified conditions without energy from some ...
Энтропия и сольвация
Энтропия и сольвация
The process of surrounding a solute with solvent is called solvation. It involves evenly distributing the solute within the solvent. The rule of thumb for ...
Свободная энергия Гиббса и термодинамическая благоприятность
Свободная энергия Гиббса и термодинамическая благоприятность
The spontaneity of a process depends upon the temperature of the system. Phase transitions, for example, will proceed spontaneously in one direction or ...
Химическое равновесие и равновесие растворимости
Химическое равновесие и равновесие растворимости
The free energy change associated with dissolving a solute in a liter of solvent is called the free energy of a solution, ΔGsolution. The overall ...
Норма закона и реакции
Норма закона и реакции
The rate of a reaction is affected by the concentrations of reactants. Rate laws (differential rate laws) or rate equations are mathematical expressions ...
Влияние изменения температуры на скорость реакции
Влияние изменения температуры на скорость реакции
The Arrhenius equation, relates the activation energy and the rate constant, k, for many chemical reactions. In this equation, R is the ideal gas ...
Многоступенчатые реакции
Многоступенчатые реакции
Chemical reactions often occur in a stepwise fashion involving two or more distinct reactions taking place in a sequence. A balanced equation indicates ...
Энергия диссоциации связи и энергия активации
Энергия диссоциации связи и энергия активации
Bond energy is the energy required to break a bond homolytically. These values are usually expressed in units of kcal/mol or kJ/mol and are referred to as ...
Энергетические диаграммы, переходные состояния и промежуточные звенья
Энергетические диаграммы, переходные состояния и промежуточные звенья
Free-energy diagrams, or reaction coordinate diagrams, are graphs showing the energy changes that occur during a chemical reaction. The reaction ...
Прогнозирование результатов реакции
Прогнозирование результатов реакции
Kinetics describes the rate and path by which a reaction occurs. In contrast, thermodynamics deals with state functions and describes the properties, ...
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