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Specific Heat

(Specific Heat Capacity)
(Ratio of added temperature to added heat for a material)

Specific Heat (Specific Heat Capacity) is the ratio of increased Temperature to added heat for a substance. This ratio depends upon pressure and volume, so for gases, the quoted values generally specify it to be one of two particular cases: as the specific heat of gas kept at a constant volume (CV) or kept at a constant pressure (CP).

The ratio of these (CV/CP) is known as the Adiabatic Index (γ). An index of 5/3 is well-known as a reasonable index for monatomic gases, a common state within stars. It is used in simple Stellar Structure models to determine whether convection is taking place (Mixing Length Theory) and can be used in Lane-Emden Equation Equations of State in modeling convective stars.

Solids, which do not fill a volume in the manner of gases, generally have one cited specific heat capacity.


(physics,thermodynamics,temperature)
http://en.wikipedia.org/wiki/Heat_capacity
http://en.wikipedia.org/wiki/Heat_capacity_ratio

Referenced by:
Thermal Inertia

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