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Chapter 2

Thermodynamics and Chemical Kinetics

التفاعلات الكيميائية
التفاعلات الكيميائية
A balanced chemical equation provides the information of chemical formulas of the reactants and products involved in the chemical change. A ...
المحتوى الحراري وحرارة التفاعل
المحتوى الحراري وحرارة التفاعل
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 ...
طاقة تكوين المحلول
طاقة تكوين المحلول
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 ...
الانتروبيا والذوبان
الانتروبيا والذوبان
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 ...
الطاقة الحرة من جيبس وتفضيل الديناميكا الحرارية
الطاقة الحرة من جيبس وتفضيل الديناميكا الحرارية
The spontaneity of a process depends upon the temperature of the system. Phase transitions, for example, will proceed spontaneously in one direction or ...
التوازن الكيميائي والذوبان
التوازن الكيميائي والذوبان
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 ...
قانون المعدل وأمر رد الفعل
قانون المعدل وأمر رد الفعل
The rate of a reaction is affected by the concentrations of reactants. Rate laws (differential rate laws) or rate equations are mathematical expressions ...
تأثير تغير درجة الحرارة على معدل التفاعل
تأثير تغير درجة الحرارة على معدل التفاعل
The Arrhenius equation, relates the activation energy and the rate constant, k, for many chemical reactions. In this equation, R is the ideal gas ...
ردود فعل متعددة الخطوات
ردود فعل متعددة الخطوات
Chemical reactions often occur in a stepwise fashion involving two or more distinct reactions taking place in a sequence. A balanced equation indicates ...
طاقة تفكك السندات وطاقة التنشيط
طاقة تفكك السندات وطاقة التنشيط
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 ...
مخططات الطاقة والحالات الانتقالية والوسيطة
مخططات الطاقة والحالات الانتقالية والوسيطة
Free-energy diagrams, or reaction coordinate diagrams, are graphs showing the energy changes that occur during a chemical reaction. The reaction ...
التنبؤ بنتائج رد الفعل
التنبؤ بنتائج رد الفعل
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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