sulaalämpötila

Sulaalämpötila refers to the temperature at which a solid substance transitions into a liquid state. This transition, known as melting, occurs when the kinetic energy of the particles within the solid overcomes the intermolecular forces holding them in a fixed structure. At the sulaalämpötila, both the solid and liquid phases can coexist in equilibrium. The sulaalämpötila is a characteristic property of a pure substance and is independent of pressure under normal circumstances, although significant pressure changes can have a slight effect. For amorphous solids, such as glass, there isn't a sharp sulaalämpötila but rather a softening range over which they gradually become more fluid. The sulaalämpötila is also sometimes referred to as the melting point. Conversely, the temperature at which a liquid solidifies is called the jäätymispiste (freezing point), which for pure substances is generally the same as its sulaalämpötila. Impurities in a substance typically lower its sulaalämpötila, a phenomenon utilized in applications like de-icing roads.