3rd December 2019


Why do Mentos react better with Diet Coke?

After a lot of debate, scientists are now saying that the primary cause of Coke & Mentos geysers is a physical reaction, not a chemical reaction. Their explanation is this process called nucleation. All the carbon dioxide in the soda – all that fizz – is squeezed into the liquid and looking for a way out.

In this way, do you have to use Diet Coke with Mentos?

But the combination of Coke Zero & Mentos is particularly potent! Diet Coke and Coke Zero tend to go a bit higher than regular soda, because they have a little more carbonation and the sweeteners help make the reaction a little bigger. Most importantly, Coke Zero and Diet Coke aren't sugary and sticky.

Why does Diet Coke and Mentos work best?

Diet sodas produce a bigger reaction than non-diet sodas because aspartame lowers the surface tension of the liquid much more than sugar or corn syrup will. You can also increase the effect by adding more surfactants to the soda when you add the Mentos, like adding a mixture of dishwasher soap and water.

What is the best soda to mix with Mentos?

The last trial I did again Diet Coke's geyser was the highest. It was 11ft tall. It seemed when I added less mentos the height of the geyser was increasing. My hypothesis was correct, Diet Coke was the highest soda to explode.
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