Question

Explain the role of latent heat in the change of a substances?​

Answer 1

Answer:

Latent heat is the amount of thermal energy, per mole, that must be added to a substance to change its state from solid to liquid or liquid to gas, or the energy given off in going the other direction, in every case at constant temperature. It’s called “latent” because it’s a latent property of the substance which originates from the collective structure of the atoms or molecules, for example, ice going to water requires energy to break the intermolecular bonds keeping H2O in a solid state, and water going to steam requires still more energy to break the (weaker) liquid-state intermolecular bonds. More information on this can be found in the Wikipedia article Latent heat.