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Why does a solid change to liquid when heat is added?
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Why does a solid change to liquid when heat is added?

User Sylwester
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Answer:

The spacing between particles decreases.

Step-by-step explanation:

User Sybreon
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when a solid is heated, the particles are given more energy and start to vibrate faster. at a certain temperature, the particles vibrate so much that there order structure breaks down. at this point the solid melts into liquid
User Ben Allred
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