高中《化学》（选修）第三册第12～13页［实验1－6］是验证温度对化学平衡的影响的实验。该实验存在如下缺陷：准备实验时很难保证连通着的两个烧瓶中气体的量与常温放置的烧瓶中气体的量完全相等，只能通过观察颜色是否相同来作大致的判定，准确度不高，失去了对比的可靠性。 High School Chemistry (Electives) Volume 3, pages 12 to 13 [Experiments 1-6] are experiments to verify the effect of temperature on chemical equilibrium. This experiment has the following drawbacks: It is difficult to ensure that the amount of gas in the two connected flasks is completely equal to the amount of gas in the flask placed at room temperature during the preparation of the experiment and can only be roughly judged by observing whether the colors are the same and the accuracy is not. High, lost the reliability of the comparison.