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盐水的沸点比水低吗
更新时间: 2020-10-31 00:00:00  

1、盐水的沸点随盐的浓度而变,浓度越大,沸点越高,在标准大气压下,盐水的沸点总是高于水。

2、氯化钠(精制食盐)很容易溶于水,同时分解成钠离子和氯离子,并且在液体的内部扩散开来。水分子如果要变成水蒸气,就需要在脱离其他水分子吸引的同时摆脱钠离子和氯离子的束缚。因此需要有更多的能量,所以产生水蒸气所需的温度也更高。

关键词: 盐水 沸点

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