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一、装置气密性的检查原理无论使用何种气体装置进行实验都要检查该装置是否存有漏气的现象,只有确定装置没有漏气才能进行实验.检测实验装置的气密性基本原理就是通过装置不同位置气体形成的压强差,观察其在其他地方是否有不同的现象发生.增大压强一般采用的方法有:在加热容器的条件下增大其压强,加热的方法有用手直接捂热或者把装置放到热水中,还可以使用酒精灯进行加热,通过加热,容器内的空气就会膨胀,这时压强增大,这时可以发
First, the principle of inspection of the device airtight No matter what kind of gas device is used to carry out the experiment, it is necessary to check whether the device has a phenomenon of air leakage. Only if the device is determined to have no air leakage, the experiment can be conducted. The basic principle of the airtightness of the test device is Through the pressure difference formed by the gas at different positions of the device, it is observed whether there are different phenomena in other places. The commonly used method for increasing the pressure is to increase the pressure under the condition of heating the container, and the method of heating includes directly heating by hand. Or put the device into hot water, you can also use alcohol lamp to heat, by heating, the air inside the container will expand, then the pressure increases, then you can send