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Why does temperature change density?

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Anonymous

13y ago
Updated: 8/20/2019

Imagine a solid cube. Even though you can't see it, the atoms are vibrating just VERY close together. Imagine the cube is solid metal so it would be very dense. Now what would happen if you heated the cube until it started to melt? The metal would become LESS dense as it liquified because the atoms would now be more spread out. The same thing happens with gases. The higher the temperature, the more movement of the atoms and the more movement, the less dense.

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Wiki User

13y ago

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