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Students Love Diet Coke And Mentos Most Have Seen It On The Internet And Some Have Even Placed Mentos In Diet Coke B Physical Change Physics Chemical Changes
6 the physical process of gas escape induces chemical changes.
Diet coke and mentos chemical or physical change. You might think that there is some ingredient in a mentos candy that causes a chemical reaction with the soda pop like the way baking soda reacts with vinegar. This is actually the physical change that occurs. But the amazing eruption that takes.
Use masking tape to tape the tube closed. Due to the addition of caffeine potassium benzoate and aspartame with the co2 in the diet coke the reaction is much greater this would be the. Thus the process represented in equation 1 which powers the coke and mentos fountain is a physical change.
Many students have come to believe that it is a chemical reaction between the mentos carbonates and the diet coke acids that makes the fountain work however it turns out that research findings have turned up a quite different explanation. The activation energy for the release of carbon dioxide from diet coke by addition of mentos has been found to be 25 kj mol 1. The physical characteristics of mentos surface roughness have the effect of drastically reducing the activation energy for carbon dioxide bubble formation so that the nucleation rate becomes exceedingly high.
Cut a piece of paper so that it is as wide as a roll of mentos. Due to the addition of caffeine potassium benzoate and aspartame with the co2 in the diet coke the reaction is much greater this would be the. The reaction is largely physical not chemical.
This is actually the physical change that occurs. Due to the addition of caffeine potassium benzoate and aspartame with the co2 in the diet coke the reaction is much greater this would be the chemical change the mythbusters did an entire show. Those bubbles carry coke with them to the top of the bottle as they make their way out and we see the fountain form.
Remove the pack of mentos from the tube. The mentos and coke are unchanged just as the co2 is unchanged in this. Close off one end of the tube by cutting a little circle or square of paper and taping it to one end of the tube.
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