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Learn what latent heat of fusion is, how it relates to specific heat and molar heat of fusion, and why it is important for phase transitions. Test your knowledge with a quiz on this concept and other chemistry topics.
In thermodynamics, the enthalpy of fusion of a substance, also known as (latent) heat of fusion, is the change in its enthalpy resulting from providing energy, typically heat, to a specific quantity of the substance to change its state from a solid to a liquid, at constant pressure.
Learn what latent heat of fusion is and how to calculate it using a simple formula. See examples of latent heat of fusion for different substances and their melting points.
The amount of heat required to convert one unit amount of substance from the solid phase to the liquid phase — leaving the temperature of the system unaltered — is known as the latent heat of fusion. It is also equal to the enthalpy difference between the solid and liquid phases, ΔH SL.
Jun 4, 2024 · Latent heat is the energy absorbed or released by a substance during a phase change, such as melting, freezing, or vaporization. Learn how latent heat arises from the work required to overcome the forces that hold atoms or molecules in a material, and see examples of latent heat for water and other substances.
In meteorology, latent heat flux is the flux of energy from the Earth's surface to the atmosphere that is associated with evaporation or transpiration of water at the surface and subsequent condensation of water vapor in the troposphere. It is an important component of Earth's surface energy budget.
Sep 10, 2020 · In order to measure the specific latent heat of fusion of ice, a measured quantity of hot water is poured into test-tube. This water, in cooling down to 0°C, gives up a known amount of heat to the ice, some of which melts. So – how do you know how much ice has melted? Water ice contracts on melting into liquid.
