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Physics
Solids expand on heating because
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Q. Solids expand on heating because
Thermal Properties of Matter
A
The K.E. of the atoms increases
60%
B
The P.E. of the atoms increases
8%
C
Total energy of the atoms increases
27%
D
The K.E. of the atoms decreases
5%
Solution:
On heating the KE of the atoms increses and hence they are able to vibrate over a larger distance and hence their size increases.