sulamispisteestään

Sulamispisteestään is a Finnish term referring to the melting point of a substance. The melting point is a fundamental physical property that indicates the temperature at which a solid transitions into a liquid at a given pressure. This transition occurs when the kinetic energy of the substance's molecules becomes sufficient to overcome the intermolecular forces holding them in a fixed crystalline lattice.

The melting point is characteristic of a pure substance. Impurities generally lower and broaden the melting point range, a phenomenon that can be used to assess the purity of a sample. For example, ice melts at 0 degrees Celsius (32 degrees Fahrenheit) at standard atmospheric pressure. However, adding salt to ice causes it to melt at a lower temperature, which is why salt is used to de-ice roads in winter.

Different substances have vastly different melting points. Some, like mercury, are liquid at room temperature, while others, such as tungsten, have extremely high melting points, requiring immense heat to become molten. The melting point is an important parameter in various scientific and industrial applications, including chemistry, materials science, and metallurgy, for identifying substances, determining their purity, and controlling processes involving phase changes.