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一、概念在一定条件(恒温恒容或恒温恒压)下,同一可逆反应体系,不管是从正反应开始,还是从逆反应开始,虽然起始时物质加入的量不同,但在达到化学平衡状态时,任何相同组分的百分含量(体积分数、物质的量分数等)均相同,这样的化学平衡互称为等效平衡(包括全等等效和相似等效).概念的理解:(1)只要是等效平衡,平衡时同一物质的百分含量(体积分数、物质的量分数等)一定相同.(2)外界条件相
I. Concept Under certain conditions (constant temperature and constant temperature or constant temperature and constant pressure), the same reversible reaction system starts from the positive reaction or the reverse reaction. Although the amount of substances added at the beginning is different, it reaches the chemical equilibrium state. At the same time, the percentage content (volume fraction, substance amount fraction, etc.) of any identical component is the same. Such chemical equilibrium is mutually equivalent equilibrium (including equal equality and similar equivalence). The understanding of the concept: ( 1) As long as it is equivalently balanced, the percentage of the same substance (volume fraction, amount of substance, etc.) must be the same at equilibrium. (2) External conditions