Fagyáspontentalpia
Fagyáspontentalpia, also known as enthalpy of fusion or enthalpy of melting, is the thermodynamic term describing the change in enthalpy that occurs when a substance transitions from a solid state to a liquid state at its melting point. This process requires energy input to overcome the intermolecular forces holding the solid structure together. Conversely, when a substance freezes, it releases the same amount of energy, which is then referred to as the enthalpy of solidification or enthalpy of freezing.
The value of fagyáspontentalpia is specific to each substance and is typically expressed in units of joules