334kJkg1
The term 334 kJ/kg represents a specific value for energy density, typically associated with a change of phase. It is the latent heat of fusion for water, meaning that 334 kilojoules of energy are required to melt 1 kilogram of ice at its melting point (0 degrees Celsius) into liquid water at the same temperature. Conversely, 334 kJ/kg of energy is released when 1 kilogram of water freezes into ice at 0 degrees Celsius. This quantity is a fundamental property of water and plays a significant role in various natural processes, such as climate regulation and the formation of ice. It is a measure of the energy stored or released during a phase transition without a change in temperature. The units kJ/kg indicate that the energy is measured in kilojoules per kilogram. This value is distinct from specific heat capacity, which describes the energy needed to raise the temperature of a substance. Understanding the latent heat of fusion is crucial in fields like thermodynamics, meteorology, and engineering applications involving heat transfer and phase changes.