Conversion between Energy Units
Description
Examples
References
In certain fields, for example, chemistry and physics, it is often useful to convert between various energy units. Common examples are the conversions among frequency (MHz), wavenumber (1/cm), energy (hartrees), molar energy (kJ/mol), and temperature (kelvin).
Energy conversions are performed by using the 'energy'=true option with the functions convert/units and convert/dimensions.
Energy conversions may be seen as applying the following transformations on the dimensions of the units:
1 second =
c meters
1 kilogram =
c/h per meter
1 kelvin =
k/(h*c) per meter
1 ampere =
1/sqrt(1e7*c*h) per meter
1 candela =
1/(683*c^2*h) per square meter steradian
where c is the absolute value of the speed of light in meters per second, by definition , h is the absolute value of the Planck constant in joule seconds, approximately , and k is the absolute value of the Boltzmann constant in joules per kelvin, approximately .
Convert the wavenumber to frequency, energy, molar energy, and temperature.
Convert the SI unit coulombs to its associated units in the CGS electromagnetic (EMU) and electrostatic (ESU) systems.
Convert the speed of light into units of action (1 planck = 1 joule second).
Additional examples:
Lide, David, R., ed. Handbook of Chemistry and Physics. CRC Press, 1996.
See Also
convert/dimensions
convert/units
Units
Units/Details
Units/Index
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