Saturday, May 18, 2013

Re: Soda + Mentos




7 comments:

  1. when Mentos are dropped into the soda it causes a reaction that creates a mass amount of CO2 with very little room to go, this results in the fountain like affect you see here. the pressure of the gas builds up and is funneled through the top of the bottle since the force is not great than that of the plastic holding it in. if the gas had a greater force the bottle would simply pop like poking a balloon with a needle

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  2. The chemical reaction between coke and mentos creates extreme pressure and the only place it can go is through the weakest point in the bottle which is the open top. If it were to have been capped it might have broken the cap off or it could have exploded outwards. The about of pressure/ the hight of the jet of coke with all depend on the number of mentos put into the bottle.

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  3. This is physics because when the mentos are dropped into the coke bottle is causes a chemical reaction. This chemical reaction causes the chemical energy to grow. As the chemical energy grows it gets to a point were the Coke bottle can no longer contain its energy. The Coke then exceeds the Coke bottle rising upwards to cause what looks like a fountain very similar to a gazer. The Coke rises upward until all of the chemical energy is released which causes the fountain to go back down.


    PC

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  4. The soda and Mentos spray out of the top of the bottle because of the candy having little craters on the surface of it making the soda that is carbonated make more bubbles and make the bubbles rise and make the pressure in the bottle greater. then the top is like a funnel forcing it out of a small diameter hole making it shot up into the air and releasing the pressure .

    QF

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  5. The physics of the stream of foam. When the foam is forced in the direction upwards it travels there at high pace. But when it reaches its peak it stops for a split second and surrounds the foam behind it forming a mushroom shape. This result in odd formations of the foam. When the reaction started to die down the foam stopped forming the mushroom shape. It immediately shot a stream lower and lower until the reaction had finished. This is because there was no more reaction causing a force.
    Reed

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  6. The chemical reaction between the mentos and coke causes a rapid expansion and geyser due to all the variables present. The chemical potential energy stored in the mentos and coke is released when the two are combined, and cause the liquid to bubble and expand. Because the bottle is so small, and keeps the coke from expanding at its own pace, it explodes upwards through the only point of egress, causing it to seem like a geyser and releasing that last bit of chemical energy.

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  7. Everyone loves to do this. A chemical reaction occurs between the soda and Mentos. As u can see here, it causes the soda to expand. The soda expands so quickly that it shoots up 2ft into the air creating a “geyser”. This is because the soda has nowhere else to travel, besides the top of the bottle. The geyser is stopped short due to gravities constant effect, forcing the rest of the tasty beverage back down to earth.

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