In the graph above it show the change in temperature, as evaporation happened. This lab was done by putting different chemicals into test tubes and sticking a temperature gauge with a filter paper on it, into the solution. After the temperature is a constant, you start graphing the temperature and remove it from the chemical. As the chemical evaporates, the temperature drops back to room temperature. Which in the graph above it shows high much change there was from the solution to the evaporated paper.
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