“双原子模型”与表面张力的产生机制

Double-atom Model and Generation Mechanism of Surface Tension

表面张力是重要的基础概念。本文利用"双原子模型",从微观层面揭示了表面张力产生的本质及其物理意义,即表面张力是表面层分子平衡附加压力的结果;并从微观角度对润湿现象进行了解释,以使学生加深对基本概念的理解和掌握。这对提高大学生的实践能力和创新能力具有重要意义。

Surface tension is an important basic concept. The formation mechanism of surface tension and its physical significance were microcosmically explained by the use of double-atom model. Surface tension was the result of the molecular interaction each other in surface layer which balance additional pressure. Wetting phenomenon was also analyzed on the micro level. This analysis made students grasp and under stand these basic concepts and theories deeply. Our works should be an important significance in impro- ving students＂ practical ability and innovative ability.