Home > Specific heat capacity

Contents

1 Factors that influence heat capacity measurements

2 Table of specific heat capacities

3 Related concepts

4 See also

The specific heat capacity (abbreviated C, also called specific heat) of a substance is defined as the amount of heat energy (measured in Joules) required to raise the temperature of one kilogram of the substance by one Kelvin. The SI unit for specific heat capacity is the joule per kilogram Kelvin. Specific heat capacity is therefore heat capacity per unit mass. Heat capacity can be measured by using calorimetry.

The equivalent definition using cgs units is the amount of heat energy (measured in ergs) required to raise the temperature of one gram of the substance by one degree Celsius.

1 Factors that influence heat capacity measurements

The temperature of the substance. For example, measuring the heat capacity of water produces different results if the starting point is 20 °C rather than 60 °C.
Intermolecular forceIntermolecular forces are electromagnetic forces which act between molecules or between widely separated regions of a macromolecule. Listed in order of decreasing strength, these forces are: Ionic interactions Hydrogen bonds Dipole-dipole interactions Lons. If a fluid has stronger intermolecular forces (such as hydrogen bondIn chemistry, a hydrogen bond is a type of attractive intermolecular force that exists between two partial electric charges of opposite polarity. Although stronger than most other intermolecular forces, the hydrogen bond is much weaker than both the ionicing in water) then the heat capacity is likely to be higher.

2 Table of specific heat capacities

Substance	PhaseIn the physical sciences, a phase is a set of states of a macroscopic physical system that have relatively uniform chemical composition and physical properties (i. density, crystal structure, index of refraction, and so forth. The most familiar examples o at 101.325 kPa (=1 atm), 293K (20°C)	Specific heat capacity (J·kg^-1·K^-1)
AluminiumAluminium (or aluminum in North American English) is the chemical element in the periodic table with the symbol Al and atomic number 13. A silvery and ductile member of the poor metal group of elements, aluminium is found primarily as the ore bauxite and	solid	900
GoldFor alternative meanings, see gold (disambiguation Gold is a chemical element in the periodic table that has the symbol Au ( L. aurum and atomic number 79. A soft, shiny, yellow, heavy, malleable, ductile (trivalent and univalent) transition metal, gold d	solid	129
GraphiteGraphite is one of the allotropes of carbon. See also allotropes of carbon. Unlike diamond, graphite is a conductor, and can be used, for instance, as the material in the electrodes of an electrical arc lamp. The pi orbital electrons delocalized across th	solid	720
DiamondAlternate meanings: Diamond (disambiguation Diamond is one of the natural allotropes of carbon (the main allotrope being graphite; see also allotropes of carbon). The hardest of naturally occurring materials, diamonds cut into multi-faceted shapes are amo	solid	502
Copper	solid	385
Brass	solid	377
Iron	solid	444
Mercury	liquid	139
Water	liquid	4186
Ethanol	liquid	246
Water	solid	2060

specific melting heat
specific heat of vaporization

Topics: Specific Heat Capacity, Factors That Influence Heat Capacity...

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