First off, I found a website called Mental Floss, with the heading of “Why do Diet Coke and Mentos React” to figure out why Diet Coke erupts with a Mento. The eruption is so powerful, you can create a soda rocket from it. The ingredients in the Diet Coke and the Mentos along with the structure of the Mento allow for the eruption to happen. It happens because of carbon dioxide bubbles exploding out extremely quickly. If the reaction is fast enough, then you can end up with a great soda fountain. If a smoother Mento is used, then you wouldn’t get quite the same reaction. But since the Mento has holes around it, the Mento is the best choice for the eruption. The bubbles will continue to rise, and that will happen for a while.
The gum arabic and gelatin ingredients of the Mentos, combined with the potassium benzoate, sugar, or aspartame in diet sodas, also help in creating the large eruption. Gum arabic is a natural gum made by hardened sap from the acacia tree. Aspartame is a sugar substitute made of 14 carbon, 18 hydrogen, 2 nitrogen, and 5 oxygen elements. …show more content…
The addition of Mentos causes a “Carbon Dioxide Nuke”. Since the reaction is caused by carbon dioxide bubbles bursting out of the soda, carbonated sodas are the best sodas for the fountain if you want a larger reaction. Carbonated sodas would usually have more carbon inside so it would make sense to use it. Carbon dioxide begins to be created forming the gas bubbles for the reaction. This process is usually slow, because the activation energy, or the minimum quantity of energy that the reacting species must have in order to create a specific reaction, is extremely