Carbon+Dioxide+Emitted+From+Soda



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 * CARBON DIOXIDE IN SODA. Tania Russell.** This experiment shows in a scientific manner which soda, Coke or Diet Coke, contains more overall carbon dioxide and which gets flat after being opened for longer. When soda is first opened the bubbles inside it are carbon dioxide, they are released more frequently immediately after opening than after thirty minutes. Using the concept of displacement of water in an inverted graduated cylinder, the measurement of carbon dioxide became easily measureable. After demonstrating four trials, two of which were chilled and two of which were room temperature, the data was fairly simple to interpret. The Diet Coke overall released more carbon dioxide than the Coke, however the Coke initially had the most CO2 released. Coke also quickly became flat, meaning the carom dioxide emission rate went down significantly.

Graduated Cylinder Carbon Dioxide Inverted Significant Figures/Digits

After the completion of the lab, the results were neatly put into tables above. Each test was demonstrated twice, two for room temperature and two for a chilled temperature. The Coke at room temperature when opened immediately gave off 90. and 95. ml of carbon dioxide. After fifteen minutes that number decreased to 34.0 and 36.0 ml. Then, the last measurement was taken and after thirty minutes and the amount of carbon dioxide released was 23.0 and 27.0 ml. On the other hand, the Diet Coke emitted 60. and 55. ml right away after being opened then decreased to 48.0 and 41.0 ml after fifteen minutes. As the experiment continued the last measurement after thirty minutes was 38.0 and 29.9 ml of carbon dioxide released. The next two trials that were taken were when the sodas had been chilled in the refrigerator for a few hours (since the morning). The Coke emitted 118 and 99. ml of carbon dioxide then, after fifteen minutes, it emitted 28.0 and 22.1 ml. After thirty minutes the carbon dioxide emissions decreased to 13.8 and 11.1 ml. The Diet Coke began emitting 90. and 65. ml, then after fifteen minutes it changed to 79.0 and 54.8 ml. Then after thirty minutes the amount of carbon dioxide released was 63.1 and 41.4 ml. The results were stated from trial one and two respectively. Figures 1 and 2 show the data in a clearer way and allow for interpretation. In both cases, room temperature and chilled, the Coke began with a higher CO2 emission rate, however the trend on the graph clearly states that the Diet Coke overall emits more CO2 and does not get flat as quickly. This article is from the Department of Energy and explains scientific and technical information. It discusses the lab research done by Oak Ridge National Laboratory informing the reader about carbon dioxide emissions today. It focuses for the most part on the burning of fossil fuels, with graphs to explain their findings most clearly. The burning of fossil fuels contributes to the concentration of carbon dioxide in the atmosphere. It increases the content by intruding on the natural cycle of carbon dioxide in the air that is essential for many things in the world. These emissions may be contributing to the climate changes around the world, the more the people continue to pollute the earth, the more drastic the changes will be. The way to control the emissions as best as possible, scientists must first find the source of the carbon dioxide. The Framework Convention of Climate Change was signed by 154 nations; it stated that each nation must evaluate the sources of greenhouse gases (IN TEXT). Scientists have now been able to compile data and find a formula to calculate carbon dioxide emissions from fossil fuels: CO2,I = FPi x FOi x Ci The three variables on the left stand for the net fuel production, the faction of fuel oxidized, and the carbon content of the fuel, the small I represents the state of the fuel, being either solid, liquid, or gas. In 1991, the global carbon dioxide emission was estimated to be 6188 x 106 tonnes C. This number increases every year. The highest contributors of carbon dioxide are China and then close behind them the United States. The shocking figures presented in this writing, and many others, have increased the awareness of the general public as well as political bodies, many which are seeking for means of reducing such pollutants. The calculations of greenhouse gas emissions continue today in hopes to keep the public conscious of the pollution and help reduce it as well. Works Cited: ** Robert A, Gregg M, Tom B, Steve B. 2008. Carbon Dioxide Emissions from Fossil Fuel Consumption and Cement Manufacture 1751-1991; and an Estimate of Their Isotopic Composition and Latitudinal Distribution. 1(1): 1-18.
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