'Phase change lab\r'

'We deplete worked with sweltering central off ice-skating rinks and thermometers in other labs before, so we shaft how to be safe. I wonder what a interpret of the changing temperatures over time between the phases would disembodied spirit like. Hypothesis Based on prior learning, I predict that the represent of the pee system phase heightens exit not be one and only(a) straight slope, only when instead will tableland, or be unwavering, and thusly slope between the variety show of ice to pissing, plateau and slope once more between the change of water to steam, and then plateau once more.If we eternalize the temperature of the H2O at regular Intervals, then we will be able to make the predicted graph. Procedure make of Materials: 1 thermometer (Tot 100 OIC 1 beaker (250 or four hundred ml), 1 hot plate, CE (enough to fill the beaker), spigot water ( astir(predicate) 25 ml 1 gradational cylinder (optional), safety goggles, lab apron, at least(prenominal) 1 rag (t o clean up spills), draw/pen, notebook/paper, graph paper, and access to an electrical outlet. stairs: 1. Prepare a data table to compose measurements from the lab.Make sure to put the dependent and independent variables in the correct place. 2. Fill the beaker with ice and add a small amount of water (about 25 ml) 3. tell the beaker on the hot plate with the hot plate TURNED OFF. 4. Take two temperature measurements of the Ice/ water slurry 30 seconds apart. 5. Do not let go of the thermometer. 6. Do not let the thermometer touch the beakers sides or bottom. 7. Turn the hot plate on to about 6 (about halfway). 8. Collect temperature measurements every 30 seconds.The plateaus were not completely flat and fluctuated between 2 degrees of temperature. We didnt bear to record measurements after reaching 100 co because we ran out of time and our outlet wasnt working. Analysis 2. conformation changes are happening to the water during the â€Å"flat” areas of the graph. 3. The water is heating up during the slanted areas of the graph. 4. More than one phase of water is present in the â€Å"flat” areas of the graph. 5. The heat from the hot late is converted to button when the water is changing from ice to liquid. 6.The heat from the hot plate is changing the temperature of the water when it is only liquid. 7. The graph would throw a slower change in temperature over time if we had twice the amount of water, so the graph would be longer horizontally. My hypothesis was confirm because our data that showed minuscule fluctuating temperatures for the plateaus and the rise/ outset in temperature for the slopes. However, I had not initially accounted for the unconvincing drop of temperature in the beginning imputable to the ice lolling the water because the water was room temperature.I learned that plateau points on the graph do not dwell only one temperature but instead fluctuate. We did have a possible margin of error due to possible inaccurate temp erature readings, not exact temperature readings, discordant time, and not exact time intervals. If we do this audition again, we can try changing the temperature of the initial water added or the amount of water added to see if we take in any noticeable differences. Watching H2O change phases took longer than I though!\r\n'