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Ideal Gas Law Lab

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Abstract: The purpose of this lab was to determine the cause of water to rise after a lit candle was set in the water and covered with a beaker. The methods of this lab are as follows: first, use the air/gas pressure sensor that is provided. Tape the sensor firmly and securely to the inside of the beaker. Find the control by setting the beaker over no flame in the water. Then light the candle and set the beaker over it. Record end results. Repeat the test as many times as one wishes and find the average difference. The results of the testing shows that over a period of 15 seconds, the flame has gone out and the air pressure has dropped by and an average of 0.63 kPa. These tests should result in a drop of air pressure from the control which …show more content…

The article was about the ideal gas law regarding to the formula PV=nRT and an explanation on moles and specific parts to the formula. Article (2) was an explanation of the lab and how the water actually rose. This was used as a confirmation of my conclusion of this experiment relating to the ideal gas law. Article (3) was an article explaining the ideal gas law and the significance of the ideal gas law. Gas pressure was a main factor in the rise of the water and what was recorded using the air/ gas pressure sensor to measure air pressure after the flame died out. The results of a drop in the air pressure by 0.63 kPa supports the idea of the ideal gas law which can be used for further research. My hypothesis was that if the candle is lit and a beaker is set over the candle, then the water would rise because the excess gas would have a tendency to go below the water and push the water …show more content…

After this finding, I determined that my hypothesis is not supported because the water rose due to the heat making the air expand but then contracts due to the flame dying out making the inside of the beaker to have low pressure and the outside have higher pressure causing the water to rise as the pressure on the inside and on the outside balances out, and that did not match up with the hypothesis which was once the flame consumes all the oxygen, the carbon dioxide and the other a gasses were left and due to “interactions” with the gasses and water, would try to go below the water, resulting in the water being pushed up. The results shown in the charts and tables show that as once the flame starts to die out around 10 seconds, the water starts to rise and the air pressure starts to drop and after 15 seconds, just around when the flame fully died, the air pressure drop was an average of 0.63 kPa and the water risen height was an average of 2.8 seconds. The results from this lab resulted in the theory of the interactions to be in relation to the ideal gas law. The ideal gas law has been researched by many different scientists including Robert Boyle, Richard Towneley, Henry Power, Jacques Charles, and Amedeo Avogadro. This specific lab has also been demonstrated and explained many

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