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关于沸腾现象形成的具体过程,初、高中教材都做过较详细的说明,这里不再赘述。本文只就沸腾的成因和产生沸腾的条件作一简要分析。一、沸腾的成因沸腾是一种剧烈的汽化现象,它总伴随着气泡的生长、上升和破裂过程。对于沸腾的成因,要从分析气泡的变化入手,弄清沸腾的微观机制,对沸腾的成因才能有全面正确的认识。我们知道,水中能溶有少量空气,容器壁的表面小空穴中也吸附着空气,这些小气泡起汽化核的作用。水对空气的溶解度及器
With regard to the specific process of the boiling phenomenon, textbooks for the early and high schools have been described in more detail and will not be repeated here. This article only makes a brief analysis of the causes of boiling and the conditions for boiling. The Cause of Boiling Boiling is a violent phenomenon of vaporization. It is always accompanied by the growth, rise and rupture of bubbles. For the cause of boiling, we must start with an analysis of the changes in the bubbles, understand the microscopic mechanism of boiling, and have a full and correct understanding of the causes of boiling. We know that there is a small amount of air in the water, and there is also air in the small cavity on the surface of the container wall. These small bubbles act as vaporized nuclei. Water-to-air solubility and device