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Wednesday, November 17, 2010

PS Phase Change Post Lab

1) Make a graph of Time on the x axis (bottom) and Temperature on the y axis.
2) Write a conclusion that summarizes your results, answers the question ("Does temperature change during a phase change?"), and comments on your hypothesis.

Reminder: If your results are suspicious (for example, your temperature changed wildly throughout the experiment) the conclusion is where you would explain what you expected and why you think your results deviated from that expectation (for example, "Our data showed that the temperature kept increasing during a phase change, but I know from the textbook that the temperature should stay constant during a phase change. I think that our results were influenced by the fact that we were resting the thermometer on the bottom of the beaker, so our data really shows the temperature of the hot plate, not the temperature of the water. If I were going to do the experiment over again, I would make sure to hold the thermometer differently, then I would expect to see the temperature remain constant during the phase change.")

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