Heat Meaning

What is Heat:

Heat is a type of energy that is produced by the vibration of molecules and that causes the rise in temperature, the expansion of bodies, the melting of solids and the evaporation of liquid. In a generic way, it is an elevated temperature in the environment or in the body. It is also applied to refer to the way of doing something with passion, fervor and enthusiasm. In a symbolic way, it also expresses affection, affection. It comes from Latin heat, limeōris.

See also Warmth.

Specific heat

Specific heat is the amount of heat that needs to be supplied to the unit mass of a substance to increase the temperature by one unit. This physical quantity is represented in this way: "c". The formula used to find the specific heat is the division between the heat capacity and the mass of the substance (c = C / m).

See more about Specific heat.

Latent heat

Latent heat is the amount of heat transferred to a unit mass of a substance to change its state. A distinction is made between latent heat of fusion, evaporation and solidification. The heat ("Q") that must be applied for a mass of a certain substance to change phase is expressed with the formula Q = m L. "L" represents the latent heat of the substance and depends on the type of phase change. An example can be the change of state of water from solid to liquid. With a temperature of 0ºC a latent heat of 334 · 103 J / kg is necessary. In the same way, for water to change from a liquid state to vapor at 100 ° C, a latent heat of 2260 · 103 J / kg is necessary.

Sensible heat

Sensible heat is the amount of heat that a body absorbs or releases without causing changes in its physical state. When sensible heat is supplied to a body, its temperature rises. This type of heat (either absorbed or transferred), depends on the pressure exerted on the body. When there is greater pressure, there is greater sensible heat. On the contrary, the lower the pressure, the less sensible heat.

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