化学平衡解题通用方法探讨

A General Method for Solving Problems Related to Chemical Equilibrium

对于复杂的化学平衡,平衡时刻浓度、分压、物质的量、转化率之间存在错综复杂的关系,给解题带来了很大难度。提出了"列表—设未知数—计算分压—计算平衡常数—求解"的5步解题通用方法,并利用该方法,结合CASIO计算器独特的解题特色,对近几年化学竞赛中出现的2道化学平衡试题进行了剖析。

There are complicated relations among concentrations, pressures, amount of substance and conversion ratios for complex chemical equilibrium, which bring great difficulties to solve these problems. This paper presents a general method of five steps which includes listing, assuming unknown number, calculating pressures, calculating equilibrium constants and solving to solve problems. Two problems related to chemical equilibrium appeared in recent years’ Chemical Olympiad are carefully analyzed using this method with application of CASIO calculator’s unique function.