Created by Dale Olive and Randy Scoville
Future Flight Hawai`i instructors
Demonstration at a glance:
Hydrogen gas is generated and trapped in a water balloon. When lit, the hydrogen balloon explodes with a loud bang.
To generate enough hydrogen gas I use hydrochloric acid poured over zinc metal in a flask. It is generated by the following reaction:
This is a good demo to show the energy potential of hydrogen gas. The reaction goes as follows:
A good extension discussion could center on the Hindenburg which was filled with hydrogen gas when it exploded into flames. Although this incident is foremost in people's minds when we mention hydrogen, it still is a promising fuel source. Notice the only product is water! It truly is a clean burning fuel. I've seen hydrogen-burning cars but at $4 a gallon for liquid hydrogen we may not see it in mass production soon. Although at today's gas prices, we just may???
Communications: Hawaii Space Grant Office
This activity is featured in Future Flight Hawaii, a K-12 Education Project of Hawaii Space Grant Consortium.
FEB 27 2001.