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The energy used for sublimation and fusion is thermal energy. Sublimation requires the input of heat energy to convert a solid directly into a gas, while fusion involves the heat energy required to overcome the electrostatic repulsion between atomic nuclei to combine them into a new nucleus.
This energy is the enthalpy of fusion (or latent heat of fusion).
The latent heat of fusion
The heat fusion (H fusion) is the amount of energy required to change a substance from solid to liquid at its melting point. To calculate the energy needed to melt a mass of solid, you multiply the mass of the substance by its heat of fusion. The formula used is ( Q = m \cdot H_f ), where ( Q ) is the energy required, ( m ) is the mass, and ( H_f ) is the heat of fusion. This calculation provides the total energy needed to completely melt the solid into a liquid at its melting temperature.
Nuclear fusion releases energy in the form of heat and light. This occurs when the nuclei of two atoms combine to form a new, heavier nucleus, releasing a large amount of energy in the process.
No. Specific heat capacity (c) is used in to calculate energy when matter is not undergoing a phase change [Q = mc(delta)T]. Heat of fusion (HF) is used to calculate energy when matter is either melting or freezing [Q = m(HF)].
The energy required to melt one gram of a substance is known as the heat of fusion.
The heat of fusion is used to first convert the volume of liquid to its solid form, then the heat of vaporization is used to convert the solid to vapor. By summing the two energy values, you can calculate the total energy required to vaporize the liquid volume.
Heat of fusion is called the latent heat of fusion because it is the heat energy required to change a substance from a solid to a liquid phase, or vice versa, without a change in temperature. This heat energy is "hidden" as it is being used to break the intermolecular bonds holding the substance together, rather than increasing its temperature.
Heat of Fusion
Because of the heat of fusion the ice is now water
The latent heat of evaporation