等效平衡在化学平衡问题中的应用

化学平衡是化学教学的重点和难点，尤其是平衡移动的方向及反应物的转化率的判断，更加复杂．等效平衡思想应用于解决化学平衡问题，能使复杂的问题简单化，并能明确解题思路和方向．阐述了等效平衡的涵义，用等效平衡模型分析平衡转化率问题，并用实例说明等效平衡在化学平衡问题中的应用．

The application of equivalent balance in the chemical equilibrium

Chemical equilibrium is both the key point and difficult point in chemistry teaching. The direction of balance moving and the judgment of reactant conversion are much more complicated. The application of equivalent balance concept in chemical equilibrium problems can make the complicated problems simplified and provide clear direction and way to solve the problems. The paper elaborates the definition of equivalent balance and analyzes the equilibrium conversion with the mode of equivalent balance. The paper also demonstrates the necessity of equivalent balance in the chemical equilibrium with examples.