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检查装置的气密性简单地说就是检查是否漏气,是初中化学实验基本操作之一,也是保证一些实验成功的关键.可是初中化学课本中仅以一幅图、四十几个字加上一个为什么就介绍完毕,大多数初学化学的学生不了解检查装置气密性的基本原理,加上装置的多样性,使检查装置的气密性的有关问题成为学生的难点之一.如:什么样的装置需要检查气密性、检查装置气密性的操作在什么时候开始、检查装置气密性的基本原理和基本方法等.针对这些难点问题,我们来谈谈检查装置的气密性.
Check the airtightness of the device is simply to check whether the leak, is one of the basic operation of junior high school chemistry experiments, but also to ensure the success of some experiments the key.But junior high school chemistry textbooks only to a map, plus a few words One of the reasons why the introduction is complete, most beginner chemistry students do not understand the basic principle of inspection device airtight, coupled with the diversity of devices, the inspection device airtight problems become one of the difficulties of students. Such devices need to check the airtightness, when to check the airtight operation of the device, when to check the basic principle and the basic method of the airtightness of the device, etc. In response to these difficulties, let’s talk about the airtightness of the inspection device.