physical_consts1 http://www.openmath.org/cd/physical_consts1.ocd 2003-04-01 experimental 2000-08-14 2 0 This CD defines symbols which represent some elementary physical constants. absolute_zero This symbol represents the absolute zero of temperature, synonymous with the object of that temperature having zero latent heat. zero_Celsius This symbol represents the zero of the Celsius temperature scale. zero_Fahrenheit This symbol represents the zero of the Fahrenheit temperature scale. light_year This symbol represents the distant for which a beam of light would take a year to traverse, in a vacuum. speed_of_light This symbol represents the speed of light in a vacuum. It is approximately 299792458 metres per second. > Planck_constant This symbol represents the fundamental constant equal to the ratio of the energy of a quantum of energy to its frequency. It is approximately equal to 6.6260755*10^(-34) +/- 4.0*10^(-40) Joule seconds. > mole This symbol represents the number of atoms in one gramme of carbon(12). > gravitational_constant This symbol represents the constant of proportionality in Newtons law of universal gravitation which states; Two bodies attract each other with equal and opposite forces; the magnitude of this force is proportional to the product of the two masses and is also proportional to the inverse square of the distance between the centers of mass of the two bodies. It is approximately equal to: 6.672*10^(-11) Newton square metres per kilogramme squared. > Avogadros_constant This symbol represents the number of atoms in 12 grammes of pure carbon(12). It is approximately 6.0221367*10^(23) +/- 3.6*10^(17) per mole. > Faradays_constant This symbol represents the electric charge carried by one mole of electrons. it is approximately 96485.309 +/- 0.029 Coulombs per mole. > gas_constant This symbol represents the constant which is equal to the ratio of the pressure times the volume and the temperature of an ideal gas. It is approximately 8.31451 +/- 7.0*10^(-05) Joules per mole per Kelvin. > Loschmidt_constant This symbol represents the number of particles per unit volume of an ideal gas at standard temperature and pressure. It is approximately 2.686763 * 10^(25) +/- 2.3 * 10^(20) per metre cubed. > magnetic_constant This symbol represents the ratio of the magnetic flux density in a substance to the external field strength for vacuum. It is equal to 4 pi x 10^(-7) H/m. > Boltzmann_constant A constant which describes the relationship between temperature and kinetic energy for molecules in an ideal gas. It is approximately 1.380658*10^(-23) +/- 1.2*10^(-28) Joules per Kelvin. >