Today we are going to discuss about various kinds of specific latent heat. Latent heat is the amount of energy required to change the state of a substance without changing its temperature. When a substance undergoes a change in state, such as melting, vaporization, or sublimation, energy is either absorbed or released. This energy is known as latent heat. Specific latent heat refers to the amount of energy required per unit mass of the substance to undergo a change in state. In this article, we will define the various kinds of specific latent heat.
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Various kinds of specific latent heat
Specific Latent Heat of Fusion:
The specific latent heat of fusion is the amount of energy required per unit mass of a substance to change its state from solid to liquid without changing its temperature. This means that when a solid substance is heated, it will eventually reach its melting point. At this point, the substance will absorb energy in the form of heat, but its temperature will remain constant until all of the solid has melted. The amount of energy required per unit mass to complete this process is the specific latent heat of fusion.
Specific Latent Heat of Vaporization:
The specific latent heat of vaporization is the amount of energy required per unit mass of a substance to change its state from liquid to gas without changing its temperature. This means that when a liquid substance is heated, it will eventually reach its boiling point. At this point, the substance will absorb energy in the form of heat, but its temperature will remain constant until all of the liquid has vaporized. The amount of energy required per unit mass to complete this process is the specific latent heat of vaporization.
Specific Latent Heat of Sublimation:
The specific latent heat of sublimation is the amount of energy required per unit mass of a substance to change its state from solid directly to gas without passing through the liquid state. This means that when a solid substance is heated, it will eventually reach its sublimation point. At this point, the substance will absorb energy in the form of heat, but its temperature will remain constant until all of the solid has sublimated. The amount of energy required per unit mass to complete this process is the specific latent heat of sublimation.
In summary, specific latent heat is the amount of energy required per unit mass of a substance to undergo a change in state without changing its temperature. The specific latent heat of fusion, vaporization, and sublimation are the three types of specific latent heat that are commonly defined. Understanding these concepts is important in various fields of science, such as thermodynamics, atmospheric science, and materials science.
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