Fusion or melting:
- The process of melting involves turning a solid into a liquid.
- A pure material's melting point, commonly referred to as the melting point, is a characteristic of that substance that undergoes melting.
- Any pure substance needs a certain amount of energy to change from a solid to a liquid.
- A liquid is formed when solids are heated to the point at which the molecules that hold their bonds together break.
- The process of melting often referred to as heat of fusion, results in the molecules of a substance becoming less coordinated
- Latent heat of fusion is the quantity of energy required to transform a solid material into a liquid by inducing a change in its physical state (usually in the form of heat).
Therefore, fusion takes place when a solid turns into a liquid.