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What is thermal expansion?

Asked by Topperlearning User 14th May 2015, 1:27 PM
Answered by Expert

Subtances expand on heating. All matter are made of molecules. On heating, these molecules vibrate with increased energy. These molecules require more space to vibrate and so the object expands. We call this property of expansion of matter on heating as thermal expansion.

Answered by Expert 14th May 2015, 3:27 PM
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