Question

Explain why heat is needed to melt solid. Define the latent heat of fusion​

Answer 1

Solution. Heat energy is needed to melt a solid because heat energy increases the kinetic energy of particles, which is sufficient enough to break the attraction or bond between the particles and they start moving faster. ... This heat energy is called latent heat of fusion.

Answer 2

Answer:

heat of fusion

energy transfer

latent heat, also called the heat of vaporization, is the amount of energy necessary to change a liquid to a vapour at constant temperature and pressure. The energy required to melt a solid to a liquid is called the heat of fusion, and the heat of sublimation is the energy

The latent heat of fusion is the enthalpy change of any amount of substance when it melts. When the heat of fusion is referenced to a unit of mass, it is usually called the specific heat of fusion, while the molar heat of fusion refers to the enthalpy change per amount of substance in moles.