Volcanic outgassing analogy using soda at Mt. St. Helens скачать в хорошем качестве

Volcanic outgassing analogy using soda at Mt. St. Helens

Magma underground often contains dissolved volatile compounds such as water and carbon dioxide. As the pressure decreases when the magma rises to the surface, these compounds convert to the gas phase, creating bubbles in the lava and often making volcanic eruptions more violent. This sort of conversion of dissolved gases to gas bubbles can easily demonstrated by decreasing pressure on a soda (e.g., by opening the bottle). This video was shot at the crater rim of Mt. St. Helens, where a violent landslide and eruption took place on May 18, 1980. For more information see: Campbell, D. J. “Mt. St. Helens 40 Years Later: Getting More from Soda Volcano Demonstrations.” ChemEd Exchange. May 17, 2020. https://www.chemedx.org/article/mt-st... . I'm super thankful Kristine Campbell and I got to and from this location (seems miraculous we made it) and shot this video. Sorry for any errors, we only had one opportunity to shoot this video. The Bradley University Chemistry Club Demo Crew is grateful for support from the Illinois Heartland Section of the American Chemical Society and the Illinois Space Grant Consortium.