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  Encyclopedia of Keywords > Glossaries > Glossary of Physical Quantity > Heat Capacity /   Michael Charnine

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  1. The heat capacity is the specific heat capacity multiplied by the mass.
  2. Heat capacity is a measure of how much something can store up heat as it changes temperature.
  3. Heat capacity is an extensive quantity and as such is dependent on the number of molecules in the system.

Heat Capacities

  1. While, in fact, the degrees of freedom corresponding to the momenta of the atoms are quadratic, and thus contribute to the heat capacity.
  2. Thus, generally speaking, there a close correlation between the size of a solid chemical element and its total heat capacity (see Volumetric heat capacity).
  3. Solid phase The dimensionless heat capacity divided by three, as a function of temperature as predicted by the Debye model and by Einstein---s earlier model.


  1. The heat capacity can be broken up in several different ways.
  2. Heat capacity (abbreviated C th or just C, also called thermal capacity) is the ability of matter to store heat.


  1. For -1 < -- < 0, the heat capacity has a "kink" at the transition temperature.
  2. Measuring the heat capacity at constant volume can be prohibitively difficult for liquids and solids.
  3. See the section on gases in heat capacity for a more complete discussion of this phenomenon.
  4. In the International System of Units, heat capacity is expressed in units of Julie's per Kelvin.
  5. When the heating process is finished, record the final temperature and calculate the heat capacity of the system.

Constant Volume

  1. Of particular usefulness in this context are the values of heat capacity for constant volume, C V, and constant pressure, C P. These will be defined below.
  2. Typical processes for which a heat capacity may be defined include isobaric (constant pressure, d p = 0) or isochoric (constant volume, d V = 0) processes.
  3. Heat capacity (C v at constant volume and C p at constant pressure) The quantity of heat required to produce a unit temperature rise per mole of material.

Molar Heat

  1. Each vibrational mode will contribute R to the total molar heat capacity, however.
  2. When the unit quantity is the mole, the term molar heat capacity may also be used to more explicitly describe the measure.
  3. Not surprisingly, the constant-volume molar heat capacity of nitrogen at this temperature is five-thirds that of monatomic gases.

Constant Pressure

  1. C p,m, molar heat capacity at constant pressure: the subscript may be omitted if there is no risk of ambiguity, as is often the case in pure chemistry.
  2. The constant -- is the critical exponent associated with the heat capacity.
  3. Examples E p - potential energy c p - heat capacity at constant pressure Extensive vs.


  1. In such cases, the mass-specific heat capacity (specific heat) is often explicitly written with the subscript m, as .
  2. Thus, the effect of higher temperatures and vibrational heat capacity acts to increase the difference between sound speed in monatomic vs.
  3. In the International System of Units, heat capacity is expressed in units of joules per kelvin.
  4. The heat capacity of a certain amount of matter is the quantity of heat (measured in joules) required to raise its temperature by one kelvin.
  5. The SI unit of entropy is J·K -1 ( joule per kelvin), which is the same unit as heat capacity.
  6. Books about "Heat Capacity" in

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  Originally created: June 24, 2008.
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