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与气体质量有关的问题,习惯上是用克拉伯龙方程来计算的。克拉伯龙方程早已不属于中学物理教学的范畴,可是,气体部分的复习资料和试题,又常常出现一些与气体质量有关系的问题。为了回避克拉伯龙方程,当出现与气体质量有关系的习题时,一般都是从题设条件出发,根据气体体积或压强与质量的正比关系,用理想气体状态方程或用气体的三个实验定律,分若干阶段来逐步运算。这种处理问题的方法,虽然可以严格不超出教学大纲,但往往要把本应比较简单的问题,多绕不少的弯子,因而使问题复杂化了。有些教师,
Problems related to gas quality are customarily calculated using the Crablon equation. The Krablon equation has long been out of the category of physics teaching in middle schools. However, there are often problems with gas quality related to the review of gas components and test questions. In order to avoid the Crablonian equation, when there are problems related to the quality of gas, it is generally based on the condition of the problem. According to the gas volume or the proportional relationship between the pressure and the mass, the ideal gas state equation or three experiments with gas are used. The law is divided into stages to gradually operate. Although this method of handling problems can not strictly exceed the syllabus, it is often necessary to round up many problems by arranging a relatively simple problem, thus complicating the issue. Some teachers,