Question

What is the observation in the Diet Coke and mentos experiment state the claim and observation?

Answer 1

It’s the very porous surface of the mentos that gives it a very high affinity to the carbon dioxide in the soda. Once dunked it, the dissolved CO2 is quickly brought out of the solution and once sufficiently big bubbles form they are able to rise to the surface bringing the soda along with it and you get a messy fountain of Coke.

Answer 2

Bubbles and soda will quickly shoot out of the bottle in a high fountain. The carbon dioxide molecules attach to the surfaces of the Mentos like they did in the cup of soda. All those Mentos in a lot of soda make a lot of bubbles that rise to the surface and push the soda out in a big woosh!