I need help.

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deleted-786797
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I need help.

Post by deleted-786797 »

Hello! I desperately need help visualizing my project. Right now, I am having trouble thinking about the rationale (this among a lot of other things regarding the project) for my project. My project is testing the effects of temperature on the pressure of carbon dioxide as released by carbonation. I feel like this project is very straight forward and I can't think of a way to elaborate. I don't think that changing my project is viable, either, so I am currently stuck on this experiment. Sorry if this was hard to read I am stressing out.

Thanks,
Dan
rmarz
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Re: I need help.

Post by rmarz »

dann0003 - Some explanation of terms might help you understand and visualize your project The word 'carbonation' would suggest that carbon dioxide gas will dissolve or be absorbed by a water based liquid at some level. Solubility in other liquids will vary. Increase the pressure and a greater amount of gas will be absorbed. Reduce temperature and more gas will be absorbed. Reverse any of these and the action reverses. At a constant pressure and temperature, the amount of carbon dioxide gas in the liquid will reach equilibrium. Good luck.

Rick Marz
NehaK6
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Re: I need help.

Post by NehaK6 »

Hi Dan!

I found this article on Sciencing (https://sciencing.com/info-8793154-carb ... ature.html), which essentially says that carbonation has to do with the amount of carbon dioxide in a liquid, and the rate at which the carbon dioxide dissolves is affected by temperature (higher temperature=decreased rate, lower temperature=increased rate). Regarding pressure, when there is high pressure and low temperature, you have the highest amount of gas absorption. Once carbon dioxide and the liquid make contact, "the gas dissolves into the liquid until the pressure becomes equal to the pressure which pushes down the liquid to stop the process. As a result, the temperature has to be lowered to about 36 to 41 degrees Fahrenheit to continue the process." So when, for example, a carbonated drink like soda is opened, the pressure is decreasing, causing the absorbed carbon dioxide to be released as little bubbles.

To better understand carbonation in even, say a solid, I recommend reading this article on how pressure in carbonation is used to make pop rocks (link: http://blogs.discovermagazine.com/scien ... b3w6JJKiM8).

Finally, I found a lab that seems similar to what you're trying to accomplish (https://scholarblogs.emory.edu/eurj/fil ... _Final.pdf), although this lab is testing temperature and pressure on the solubility of the carbon dioxide in the carbonated drink. It's not the effect of temperature on pressure in carbonation but rather temperature and pressure's combined effect on solubility of CO2 in carbonation. That's what mostly pops up when I look up search results similar to what you asked for.

Hopefully this gives you a better idea about how you could organize your project. Let me know if you have any questions after reading through this material!

Neha
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