States of Matter
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Watch this video, which uses the example of water to remind us of the properties of solids, liquids, and gases. It also introduces a graph called a heating curve. Heating curves show us how the temperature changes as we add heat (q or △H) to a substance. Notice that while a phase change occurs, the temperature stays constant. This is why we can define melting points and boiling points for substances.
Source: Khan Academy, https://youtu.be/iCaSX4zFA2o
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Last modified: Thursday, May 20, 2021, 2:28 PM