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Phase changes of water - Oakland Schools

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Temperature vs. Time (Energy Added graph <strong>of</strong> <strong>Phase</strong>s <strong>of</strong> Water<br />

• A transfer <strong>of</strong> energy occurs at every change <strong>of</strong> phase.<br />

• Heat <strong>of</strong> Fusion – the amount <strong>of</strong> energy needed to change any substance from<br />

solid to liquid (or a liquid to solid).<br />

• Heat <strong>of</strong> Vaporization – the amount <strong>of</strong> energy required to change any substance<br />

from liquid to gas (or a gas to liquid).<br />

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