Hypothesis: When tests are conducted at room temperature, cooled temperature, and heated temperature, the heated water will dissolve the tablet the fastest and the coolest test will be completed the slowest.
Observations and Conclusions:
As I expected, the heated water caused the Alka-Seltzer tablet to dissolve faster than the cooled or room temperature water. The results from each of the tests is in the table below.
In each test, bubbles rose to the top directly after the Alka-Seltzer tablet was dropped in. Even after the chemical reaction stopped taking place, the bubble continued to rise. The element that makes water hot is the amount of energy being conducted. The energy at use also makes the Alka-Seltzer tablet dissolve faster than the cold or room temperature water would because there is more energy in use. Although there is energy in all water, in the cold and room temperature water has potential energy while the hot water has kinetic energy. The bubbles also rose faster in the hot water.
Cool water sinks and the ice cubes in the water floated. All of this contributed to the slow pace of the dissolving Alka-Seltzer tablet. The cold water kept the tablet at the bottom of the beaker which meant that the dissolving tablet had a much more difficult task of rising to the top of the beaker. The ice also blocked the path of the bubbles traveling upwards.
In the room temperature water, the Alka-Seltzer tablet was not being dissolved by the quick paced energy flowing through, but it was not being forced down by the lack of energy either. It was right in the middle. As you can observe from the table above, the time that this test took was shorter than the cold test and longer than the hot test.
The temperature (which is also the flow of energy or the lack of energy) is very important when dissolving a solvent into a solute. The time is very much impacted by the pull downward of the cold temperature or the pull upwards of the heated temperature.
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