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冰上撒盐为什么会融化
更新时间: 2020-11-04 00:00:00  

冰上撒盐会融化是因为盐可以降低水的凝固点,盐的主要成分是氯化钠,人们将盐撒在结冰路面上,因为氯化钠十分溶于水,冰的表面就会有氯化钠溶液,再加上水的冰点。当溶解了氧化钠后,盐水的冰点就会下跌到零下一二十度,加上盐水的凝固点比水的凝固点要低的多。

关键词: 冰上 为什么 融化

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