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为什么盐水的凝固点比纯水低

更新时间: 2020-10-09 00:00:00     

盐水的凝固点低于纯水是因为溶质溶于水后所形成的溶液,凝固点下降,沸点升高。原理在于:

盐水中盐分子与水分子的大小和性质不同,盐水混合物中盐分子的存在会干扰水分子排列,导致盐水凝固点降低。根据这个原理,降雪进行撒盐可加速融雪。

关键词: 为什么 盐水 凝固点 纯水

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