Why does coke foam so much in a coke float?
In: Chemistry
Coke has air trapped in it.
Ice-cream is actually a collection of *very* small solid bits.
The air in Coke likes to gather around very small solid bits. When enough air is gathered around a small solid bit, the air escapes the Coke as a small bubble.
Ice cream melts in Coke and becomes a liquid that is much thicker than the Coke.
Thicker liquids are better at holding on to small bubbles than thinner liquids like Coke.
The thick-liquid ice cream re-traps the newly escaped small bubbles and makes foam… a lot like dish-soap, except much better tasting.
Latest Answers