Diet Coke and Mentos - The Hilarious Experiments

[revree]

Check this out for a few laughs on voting day.

http://www.eepybird.com/dcm1.html

Makes you wonder what we are consuming, folks!!!

[soothsayer]

1. We've been doing this for two weeks now. It's soooo much fun!

Use a big 2 litre diet coke at room temp. Outstanding!

[Goblinmonger]

4. So are they just altering the opening

in the cap to get the different sprays?

[tridim]

7. Doesn't that get expensive?

A toy squirt gun costs about 79 cents and works much better.

[meegbear]

2. K&R

:rofl:

[helderheid]

3. recommended!

[salvorhardin]

5. It has nothing to do with the respective chemicals in Mentos or Coke

From the site...

These chemists are saying that the primary cause is physical, not chemical. Their explanation: nucleation sites. If you have a liquid that is supersaturated with gas (like soda, which is pumped full of carbon dioxide), a nucleation site is a place where the gas is able to form bubbles. Nucleation sites can be scratches on a surface or specks of dust – anywhere that you have a high surface area in a very small volume. That's where bubbles can form.

Mentos seem to be loaded with nucleation sites. In other words, there are so many microscopic nooks and crannies on the surface of a Mento that an incredible number of bubbles will form when you drop it in a bottle of soda. Since the Mentos are also heavy enough to sink, they react with the soda all the way to the bottom. The escaping bubbles quickly turn into a raging foam, and the pressure builds dramatically. Before you know it, you've got a big geyser happening!
http://www.eepybird.com/science1.html

In other words, any soda will work, as would any food (or any other object) that has a lot of nucleation sites. If you superheat water in a microwave and then add sugar the gases in the water will rapidly escape too, making the water appear to instantly come to a roiling boil. Same principle at work.

[kahleefornia]

6. awesome!

That is so funny!

[Geoff R. Casavant]

8. Who knew I was ahead of the scientific curve?

When I was in junior high school, one of our biggest cheap thrills was dropping a couple of Rolaids in a bottle of root beer and chugging. Man, that made the biggest burps ever!

[revree]

9. The fruit flavored Mentos are

AWESOME!!!!