Menolämpötila

Menolämpötila refers to the temperature at which a substance transitions from a solid state to a liquid state. This process is also known as melting or fusion. The menolämpötila is a characteristic property of a pure substance, meaning it is a specific temperature that remains constant under constant pressure. Impurities in a substance can affect its menolämpötila, typically lowering it. For example, water freezes and melts at 0 degrees Celsius (32 degrees Fahrenheit), but adding salt to water lowers the melting point of the mixture. The concept of menolämpötila is crucial in various scientific and industrial applications, including metallurgy, food science, and chemistry. Understanding the menolämpötila helps in processes like casting metals, determining the ripeness of certain foods, and identifying unknown substances. The energy required to change a substance from solid to liquid at its menolämpötila is called the latent heat of fusion. This energy is absorbed by the substance without a change in temperature during the phase transition. Conversely, when a liquid cools down to its menolämpötila, it begins to solidify, releasing latent heat.