Diet Coke & Mentos | MythBusters

9554978   11932   3012
Adam and Jamie explore the science behind the fabled Diet Coke and Mentos phenomenon. | For more, visit http://dsc.discovery.com/tv-shows/mythbusters/#mkcpgn=ytdsc1Connect with us on Facebook: http://facebook.com/MythBusters

Комментарии

@romanieoo
@romanieoo 25-03-2024 08:23
🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥
@tiger1777
@tiger1777 25-02-2024 10:20
Cherry coke works better
@WakeRunSleep
@WakeRunSleep 08-07-2023 12:25
Or it could have just been the waxy surface insulating from the chemical reaction
@strawberrylemonadelioness
This brings me back to when this was all over the internet.
@sirstriker886
@sirstriker886 07-06-2023 15:43
Common chemistry. The surface area increases the rate of reaction. If you where to grind it up, it would be even faster. Same sort of idea when taking gels instead of pills. Pills take more time to take effect.
@derptweaker945
@derptweaker945 10-05-2023 00:11
Now all the kids doing this with Regular Cola for some odd reason and they are fine with it HELP!
@joaoveronese83
@joaoveronese83 10-12-2022 18:22
VE PRO BR DESVENDAT O MITO DO CU GRANDE AQUI DE MARINGA SP POR FAVOR PRESCISO SABER fdp
@robertodeleon-gonzalez9844
Well, this is one of those myths where doing it at home may be less dangerous than sloppy.
@Devreything
@Devreything 09-09-2022 01:00
Who’s here from school 😂
@cliftonsuber
@cliftonsuber 12-08-2022 02:04
I would’ve liked to seen them test the mentos ingredients in the coke. I don’t buy the whole nucleation thing. The green candy coating didn’t allow the coke to make contact with the contents of the candy. The should have ground the candy to a powder and then dropped that into the coke.
@joelow8681
@joelow8681 20-07-2022 02:43
I keep scrolling and keep seeing higher and higher years form before
@Emper0rH0rde
@Emper0rH0rde 03-02-2022 17:22
Some of the most fun myths to watch were the ones they said were safe to try at home.
@jsebbie
@jsebbie 11-01-2022 21:56
im doing this for a scinece project in grade 9
@vaibhavhalankar5840
@vaibhavhalankar5840 30-12-2021 17:20
If we convert kilometers in cm like architectural scale. Small miniature version. We get size of earth 13 cm, sizrr of sun 6.96 meter. And distance between them is 1.5 km.
And speed of sun light is infinity.
Look at the scale below. Correct me if i m wrong.

1000 km= 1 cm .
10000km=10 cm.
13000km=13 cm.
15000km=15 cm.
100000km=100 cm (1meter).
200000km=200 cm (2meter).
696000km=696 cm (6.96 meter).
1000000km=1000 cm (10 meter).
10000000km (1 CR)=10000cm (100 meter).
100000000km (10cr)=100000cm (1km)
150000000km(15 cr)=150000cm(1.5 km)
@brianmetcalf2440
@brianmetcalf2440 11-12-2021 21:54
There's an episode where they fill a stomach with soda and pop rocks and I'm curious what would happen if they used mentos instead
@promontorium
@promontorium 10-10-2021 12:20
I just read the wiki on this and there's some missing information here. First: It's not nucleation. That's just the term for change of state. Saying it's happening because of nucleation would be like saying water freezes because it freezes.

The fizzing IS nucleation but the REASON it is happening is because the CO2 is supersaturated in the soda when opened. That is, there's more CO2 dissolved into the liquid than the liquid can hold at the lower pressure. This is WHY the CO2 is releasing. The Mentos cause this to happen far more rapidly both because of the pits and the bubbles being introduced into the liquid when dropped in. It's not just the shape of the Mentos, but that the pits hold little pockets of air going in. When the Mentos enters the liquid the CO2, which is already nucleating, enters those bubbles in the pits of the Mentos. So the bubbles get filled with (more) CO2 and rise up out of the pits, but at the same time even more CO2 is using those pits to form new bubbles and rise so you get a rapid chain reaction.

CO2 can form bubbles on its own inside the liquid. This is called homogeneous nucleation. But it's even easier to form bubbles on surfaces that allow the bubble to form, like crevasses. This is called heterogeneous nucleation. Because heterogeneous nucleation makes it easier for bubbles to form, it's said to lower the "activation energy" needed to form bubbles.

The lower the activation energy, the less it takes for bubbles to form. So nucleation occurs faster with lower activation energy.

So to put this all together: when you open a bottle of soda it begins nucleation. The CO2 is supersaturated and begins to form bubbles. Forming bubbles in the liquid (homogeneous nucleation) has a higher activation energy so it's slow. Takes hours. Meanwhile you'll see more bubbles forming on the side of the bottle (heterogeneous nucleation), because that surface lowers the activation energy and thus more bubbles.

Mentos have millions of pits so it's adding hundreds of thousands of times more places for heterogeneous nucleation in addition to all the air bubbles the Mentos carry down trapped in those pits which can instantly absorb CO2 rather than having to wait. This causes an immediate chain reaction with very low activation energy.


Attempt at comparison:
Like if CO2 were people trying to leave a concert, and the liquid was the concert. The normal way out is taking cars or buses. Dropping in a Mentos is like if thousands of vacuum tubes instantly appeared around the entire concert venue for people to get in and be sucked away. The bubbles trapped in the pits would be like gusts of wind that blow people immediately into the tubes rather than waiting for them to get in on their own and they get sucked away like Futurama, thousands of people in seconds rather than waiting hours for car and bus traffic to clear.
@OptimusPhillip
@OptimusPhillip 24-08-2021 18:44
I'd suggest checking out the whole episode for the full story, as there are chemical factors involved not addressed in this clip.
@newengresearch1287
@newengresearch1287 08-08-2021 01:22
what no comparison of seltzer vs diet coke?
@--shai
@--shai 06-05-2021 08:32
12 later comments still open
@Shep-1701
@Shep-1701 08-04-2021 23:29
What if you just used a porous rock?

Другие видео канала Discovery Channel