Question

Why does a solid change into liquid on heating

Answer 1

This can be explained concerned with the heat energy, when a solid changesto liquid. This is called melting. The particles in a solid are held tightly and packed close together to strong forces of attraction acting between them and still they are vibrating. ... The energy is provided when solid is heated up.

Answer 2

This can be explained concerned with the heat energy,when a solid changes into liquid. This is called melting. The particles in a solid are held tightly and packed close together to strong forces of attraction acting between them and still they are vibrating.... This energy is provided when solid is heated up"..
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