點可以令到d水係0度ge時候唔變冰住呢?
可以加d咩?
點可以令到水係0度唔變冰住(chem)
2011-02-13 7:58 am
回答 (5)
2011-02-13 8:11 am
✔ 最佳答案
加壓(increase PRESSURE)
2011-02-18 12:35 am
Any solute(liquid or solid) added to water will get in the way of the crystal structure of ice as it tries to freeze , it forms a hexagonal molecule formation in order to form ice . Solute particles get in the way of crystal structure formatiom & , thus , it takes a cooler temperature to form that structure , so the freezing point is lower than 0 degree C .
2011-02-17 11:56 pm
加鹽便可以了....................
2011-02-14 9:31 pm
002可否解釋答案？
2011-02-13 8:14 am
唔需要加什麼,只需要pure,deionised water, clean container, 放在一個0度清静嬛境, 就可以啦!
2011-02-18 10:55:44 補充：
http://www.youtube.com/watch?v=wzHXiGdMvkU
這experiment 是可以repeat 的, again, 你只要放pure water, 係一個0度清靜環境就可以,其實以家可樂汔水幾所買的"飛雪"可樂原理一樣,非常有趣,你只要touch 一下就會結冰....
至於點解,I don't know how to explain it...
2011-02-18 10:55:44 補充：
http://www.youtube.com/watch?v=wzHXiGdMvkU
這experiment 是可以repeat 的, again, 你只要放pure water, 係一個0度清靜環境就可以,其實以家可樂汔水幾所買的"飛雪"可樂原理一樣,非常有趣,你只要touch 一下就會結冰....
至於點解,I don't know how to explain it...
收錄日期: 2021-04-13 17:49:21
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20110212000051KK01718