1　分子动理论对水的蒸发现象的解释在不停地做无规则运动的水分子中 ,总有一些速度大的分子能克服液面其它分子的吸引跑到水面外面去成为水蒸气分子 ,这就是水的蒸发 .2　过热水在实验室中做水的沸腾实验会因为所用水的干净程度不同而得到两种不同的实验结果 .(1 )用一般的河 1 The theory of molecular dynamics explains the phenomenon of water vaporization. Among the water molecules that are constantly doing irregular movements, there are always some molecules with high velocity that can overcome the attraction of other molecules on the liquid surface and go outside the water surface to become water vapor molecules. It is the evaporation of water. 2 Superheated water The boiling experiment of water in the laboratory will result in two different experimental results because of the cleanliness of the water used. (1) Using the average river