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酒精灯是化学实验中必不可少的仪器,常用于低温加热。酒精灯的火焰可分为外焰、内焰和焰心3个部分。初中化学教材通过一根横放在酒精灯火焰上的火柴棍证明酒精灯的外焰温度最高。有研究者对这种实验方法提出质疑,并改进了实验设计,以定性比较外焰、内焰和焰心的温度大小。传统化学实验较难准确地比较出酒精灯3层火焰温度的大小,更难定量测定酒精灯火焰各部分的准确温度。基于这个问题,笔者使用DISLab实验系统进行了如下探究
Alcohol lamp is an essential chemical experiment equipment, commonly used in low temperature heating. Alcohol lamp flame can be divided into outer flame, inner flame and flame heart 3 parts. Junior chemistry textbook through a matchstick placed horizontally on the flame of alcohol lights prove the highest flame temperature of the alcohol lamp. Some researchers questioned this experimental method and improved the experimental design to qualitatively compare the temperature of external flame, internal flame and flame core. Traditional chemical experiments are more difficult to accurately compare the flame temperature of alcohol lamp 3 layer size, more difficult to quantify the exact temperature of the alcohol lamp flame various parts. Based on this question, I use the DISLab experimental system for the following exploration