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求封闭气体的压强,是解决气体问题的关键,高中常见的两种模型为液体封闭的气体、固体封闭的气体,本文对两种情况下求气体压强的方法进行了总结,希望能帮助学生解决这类问题.物理选修3-3为热学内容,高考分值为12分,对于封闭气体的考查,通常为8分的计算题.在教学过程中我发现,求封闭气体的压强是教学的重点同时也是学生学习的难点,如何突破这一问题,以下是我在教学过程中总结出的一些规律方法,以
Seeking the pressure of closed gas is the key to solve the gas problem. The two common high school models are liquid-enclosed gas and solid-enclosed gas. In this paper, we summarize the method of seeking gas pressure in two cases, hoping to help students to solve Physical elective 3-3 for the thermal content, college entrance examination score of 12 points, for closed-end gas test, usually 8 points calculation questions in the teaching process I found that the pressure of seeking closed gas is the focus of teaching At the same time, it is also a difficult point for students to learn and how to break through this problem. The following is a summary of some regular methods that I summarized during teaching