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生活中常见的“白气”(或白雾),其实质都是由水蒸气液化成小水珠形成的,但水蒸气的来源各不相同,常见的来源如下.1.用水壶烧水,水烧开时,会看见壶嘴向外喷出很多“白气”.形成原因是:烧水时,水先汽化成水蒸气,水蒸气喷出壶嘴后遇冷放热,温度降低,液化成小水珠.
The “white gas” (or white fog) common in daily life is formed by the liquefaction of water vapor into small water droplets, but the source of water vapor is different from each other. Common sources are as follows. When the water and water are boiled, they will see a lot of “white gas” spouting out of the spout. The reason is: When water is boiled, the water vaporizes first into water vapor, and when the water vapor sprays out of the spout, it is cooled and exothermic. Lower, liquefy into small drops of water.