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可逆反应的化学平衡问题一直是高考的必考知识点,约占总分的15%~20%.熟练掌握化学平衡问题的处理办法,对于高中化学学习非常重要.笔者在解决化学平衡问题过程中,发现应用数学中的数形结合的方法可以更为直观地理解和处理此类习题.希望对其他同学有所启发.例1已知:2SO_2+O_2(■)2SO_3ΔH=-197 kJ·mol~(-1).向同温、同体积的2个密闭容器中分别充人下列
Reversible chemical equilibrium problem has been the college entrance examination knowledge points, accounting for about 15% ~ 20% of the total score.Master to master the chemical balance problem approach, for high school chemistry learning is very important.In the process of solving the problem of chemical balance , We find that we can understand and deal with such problems more intuitively by using the method of number-shape combination in applied mathematics.It is hoped that some other students can be inspired.Example 1 It is known that 2SO_2 + O_2 (■) 2SO_3ΔH = -197 kJ · mol ~ (-1) To the same temperature, the same volume of two closed containers were filled with the following