This experiment has done by my students, just minutes ago. Actually it is very difficult to observe a liquid state of CO2 because of sublimation in a natural setting. But we can see a liquid CO2 due to high pressure inside of a pipette. This finally ended up with tiny explosion :D
드라이아이스의 융해 - 이산화탄소의 액체 상태를 잠깐 동안 관찰할 수 있는 ...
Sep 10, 2012
Apr 18, 2012
Demo of liquid oxygen
1. Firing air
Now you can see the drops apparently and also realize that the drops are oxygen which make wood burning
** 산소의 성질이 정확하게 발혀지기 전까지는 firing air 정도의 의미로 이해했었다.
2. Paramagnetism
When I put magnet closer to liquid oxygen drops, they were attracted by it. This shows that oxygen is paramagnetic.
콜라캔을 타고 흘러내리는 액체 산소에 자석을 가까이 대니 자석쪽으로...
