When heating the solid The solid particles have kinetic energy increases. The particles are made to vibrate more. The energy transfer
The particle side constantly. Until some of the solid particles with energies higher than the bond between the particles. The solid particles began to move away and more. It was a solid transition into a liquid called fusion (melting) and the temperature change in the solid state to a liquid at a pressure of 1 atmosphere, the melting point.
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