# Physics and Chemistry Constants

Created | Updated Jan 28, 2002

This is a general list, in no particular order,

that any student of science might find usefull. Or

maybe not. If you notice anything missing (anything

at all) please figure out precisely what it is and drop

me a line. I will add it straight away (w/credit, of

course).

Acceleration due to gravity (on Earth)- g - 9.80665 m/s^2

Speed of light (in a vacuum)...........- c - 2.99792458 * 10^8 m/s

Gas constant...........................- R - 0.0820584 L*atm/mol*K

............................................... 8.314510 J/mol*K

Electron charge........................- e^- - -1.60217733 * 10^-19 C

Electron rest mass.....................- m_e - 9.1093897 * 10^-31 Kg

Planck's constant......................- h - 606260755 * 10^-34 J*s

Faraday constant.......................- F - 9.6485309 * 10^4 C/mol

Avagadro constant......................- N_A - 6.0221367 * 10^23/mol

Gravitational constant.................- G - 6.67 * 10^-11 N*m^2/kg^2

Boltzmann's constant...................- k - 1.3806 * 10^23 J/K

Proton rest mass.......................- m_p - 1.67264 * 10^-27 kg

Neutron rest mass......................- m_n - 1.67492 * 10^-27 kg

Please forgive the broken & dotty nature of this entry.

As I become more adept at GuideML, I will update it.