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过冷水中的第二个临界点：事实还是虚构？Second critical point in supercooled water: Fact or fiction? |
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| 课程网址: | http://videolectures.net/kolokviji_soper_supercooled_water/ |
| 主讲教师: | Alan Soper |
| 开课单位: | 科技设施委员会 |
| 开课时间: | 2016-03-14 |
| 课程语种: | 英语 |
| 中文简介: |  |
| 课程简介: | The nature of water substance continues to attract a large amount of debate and controversy. High on the list of controversies is the idea that supercooled water has a second critical point, below which, if it existed, water would phase separate into two distinct liquids, high density liquid and low density liquid. Although no direct observation of this second critical point has been made to date, a paper last year [Wang et al., J. Phys. Chem. Lett. 6, 2009 (2015)] claimed to have observed this transition in water confined in a porous silica matrix, MCM-41. This was despite several theoretical and experimental objections that had been voiced before this work was published. This talk will look at the arguments for and against the second critical point scenario for water, and highlight yet further evidence that this scenario may have serious flaws. |
| 关 键 词: | 水物质的性质; 过冷水; 临界点 |
| 课程来源: | 视频讲座网 |
| 数据采集: | 2022-03-28：zkj |
| 最后编审: | 2022-03-28：zkj |
| 阅读次数: | 30 |