论文部分内容阅读
改进“压缩体积气体液化”实验——用碘作“指示剂”四川省黔江中学邹永明初中物理演示实验“压缩体积气体液化”是用注射器作为压缩容器,乙醚作为实验物质。由于注射器推拉时不会产生很大的体积变化,乙醚的气化、液化量很小,注射器内液态乙醚的变化很不明显,加之乙醚...
Improved “compressed volume gas liquefaction” experiment - using iodine as “indicator” Sichuan Yongjiang Middle School Zou Yongming junior high school physical demonstration experiment “compressed volume gas liquefaction” is the use of a syringe as a compression vessel, ether as the experimental substance. Because the syringe does not produce a large volume change when pushing and pulling, the etherification, the liquefaction amount is very small, the change of the liquid ether in the syringe is not obvious, plus the ether...