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Chapter 14

化学平衡

动态平衡
动态平衡
A reversible chemical reaction represents a chemical process that proceeds in both forward (left to right) and reverse (right to left) directions. When ...
平衡常数
平衡常数
Consider the oxidation of sulfur dioxide: For a reaction that begins with a mixture of reactants only, the product concentration is initially equal to ...
气态反应和非均相反应的平衡
气态反应和非均相反应的平衡
Homogeneous Equilibria for Gaseous Reactions For gas-phase reactions, the equilibrium constant may be expressed in terms of either the molar ...
计算平衡常数
计算平衡常数
The equilibrium constant for a reaction is calculated from the equilibrium concentrations (or pressures) of its reactants and products. If these ...
反应商
反应商
The status of a reversible reaction is conveniently assessed by evaluating its reaction quotient (Q). For a reversible reaction described by m A + n B ...
计算平衡浓度
计算平衡浓度
Being able to calculate equilibrium concentrations is essential to many areas of science and technology—for example, in the formulation and dosing ...
勒夏特列原理(Le Chatelier's Principle) :浓度变化
勒夏特列原理(Le Chatelier's Principle) :浓度变化
A system at equilibrium is in a state of dynamic balance, with forward and reverse reactions taking place at equal rates. If an equilibrium system is ...
勒夏特列原理(Le Chatelier's Principle) :体积变化 (压力)
勒夏特列原理(Le Chatelier's Principle) :体积变化 (压力)
For gas-phase equilibria, changes in the concentrations of reactants and products can occur with altered volume and pressure. The partial pressure, P, of ...
勒夏特列原理(LeChatelier's Principle) :温度变化
勒夏特列原理(LeChatelier's Principle) :温度变化
Consistent with the law of mass action, an equilibrium stressed by a change in concentration will shift to re-establish equilibrium without any change in ...
未知数小x假设
未知数小x假设
If a reaction has a small equilibrium constant, the equilibrium position favors the reactants. In such reactions, a negligible change in concentration may ...
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