或许你有过这样的经历,听到灶火上水壶发出呼啦啦响声时,你连忙提醒爸爸妈妈去关火,他们却说:别急,水还没开呢,响水不开,开水不响啊!也就是说,开水发出的声音比接近烧开的水还要小。这是为什么呢?因为水中溶有少量空气,容器壁的表面如果用放大镜来看的话,布满了凹凸不平的小空穴,其中也吸附着 Perhaps you have had such an experience, heard on the kettle fire kettle whistle, you quickly remind parents to turn off the fire, they said: Do not worry, the water has not yet opened it, the ring is not open, the water is not ring ah! In other words, the sound of boiled water is even smaller than the boiled water. This is why? Because the water is dissolved in a small amount of air, the wall surface of the container if you look with a magnifying glass, covered with uneven small holes, which also adsorbed