How would you like to hold fire? What if you knew you wouldn't get burned?
For the last class before winter break, the Conceptual Chemistry students got to hold fire! Natural gas was trapped in soap bubbles. As each student dipped their hands in the water, Ms. Manes would ask why the water protected her hands. The answer was: It is inflammable and it has a high specific heat. That means the water forms a layer on your skin that is NOT burning, and it absorbs a lot of energy before it gets very warm.
The students held the suds while they were lit on fire, creating a spectacular fireball, lots of excitement, and no injuries.
0 comments:
Post a Comment