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液体沸点与气压之间关系的实验主要器材:50ml的注射器一只,带有7号或9号针头,青毒素小药瓶一只,瓶口处的金属密封盖不要拆掉,酒精灯一只.1.用注射器向青霉素瓶内打入水,水的体积约是青霉素瓶容积的1/3.将针头拔出,排尽注射器内的水,拉注射器活塞置20ml刻度处,再次将针头插入瓶盖中,针头插入瓶中不要太深,且要远离瓶中水面.
The relationship between the boiling point of the liquid and the pressure of the experimental main equipment: 50ml syringe, with a 7 or 9 needle, a small bottle of green toxin, the metal seal cap at the bottle mouth do not remove, alcohol lamp 1. Use a syringe to pour water into the penicillin bottle. The volume of water is about 1/3 of the volume of the penicillin bottle. Pull the needle out, drain the water in the syringe, pull the syringe piston to the 20ml mark, and insert the needle again. In the cap, do not insert the needle into the bottle too deep and keep it away from the water in the bottle.