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化学实验都是在一定的气温条件下进行的,气温的高低直接决定了实验药品、实验仪器、实验操作(有加热或降温的除外),影响化学反应的快慢,甚至会决定化学反应能否发生。多年的教学实践证明,气温对化学实验有着比较大的影响,而这一因素恰恰容易被许多教师所忽略。现通过对一些典型案例进行分析,希望引起大家对气温这一实验的因素的重视。一、气温对化学反应速率的影响
Chemical experiments are carried out in a certain temperature conditions, the temperature directly determines the level of experimental drugs, laboratory equipment, experimental operation (with or without heating), the impact of chemical reaction speed, and even determine the chemical reaction can occur . Years of teaching practice has proved that the temperature has a greater impact on chemical experiments, and this factor is easily overlooked by many teachers. By analyzing some typical cases, I hope to arouse people’s attention to the factors of temperature experiment. First, the temperature on the chemical reaction rate