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1升水和1升酒精混合等于几升

更新时间: 2020-11-19 00:00:00     

1升水和1升酒精混合等于1.92升。1L水是1kg,1L酒精是0.79kg,50%乙醇的密度是比较大的,大约是0.93。所以混合后体积就是(1+0.79)÷0.93=1.92L。

水分子和酒精分子都是在无规则的不停运动着的,升的水和1升的酒精混合后,因为分子之间存在着空隙,酒精分子和水分子分别运动到了对方分子的空隙中,使得水和酒精混合后的总体积小于原来酒精和水的体积总和。

关键词: 酒精 混合 等于

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