This is a 15 minute chemistry demonstration video from a TEDx talk in Newcastle. It is a longer watch but worth every second. The professor has to do 25 demonstrations in the 15 minutes available – will he manage it in the time?
Questions…
- What is the melting point of pure water?
- What is the boiling point of nitrogen?
- What happens to the volume of nitrogen as it changes from a liquid to a gas?
- What percentage of air is nitrogen?
- For the loud hydrogen balloons, oxygen was mixed with the hydrogen to make the bang bigger. What is the ideal proportion of hydrogen and oxygen to produce the biggest bang?
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