许多物质受热时会发生分解、脱水、氧化等变化而出现质量变化,因而可以利用物质的热重曲线来研究物质的热变化过程。近年来,热重分析类化学试题频频出现在各类试题中,很多学生在做此类试题时,由于提取不出曲线中的一些关键信息,得分率往往不高。 Many substances will be decomposed, dehydrated, oxidized and change in quality when they are heated. Therefore, the thermogravimetric curve of matter can be used to study the thermal change of matter. In recent years, thermal gravimetric analysis of chemical tests frequently appear in various test questions, many students do such questions, due to the extraction of some of the key information in the curve, the score is often not high.