الكيمياء العامة/الثوابت

الثوابت الفيزيائية / الكيميائية المفيدة

الثابت	القيمة
Avogadro's Number	NA = 6.022 14 × 1023 mol−1
Faraday Constant	F = 96 485.33 C mol−1
Atomic Mass Constant	1 amu = 1.660 538 × 10−27 kg
Molar Gas Constant	R = 8.314 4 J mol−1 K−1
Molar Gas Constant	R = 0.082 057 46 L atm K−1 mol−1
Coulomb's Constant	ke = 8.987 551 × 109 N m2 C−2
Speed of Light (Vacuum)	c = 299 792 458 m s−1
Boltzmann Constant	k = 1.380 65 × 10−23 J K−1
Charge on a Proton/Electron	e = 1.602 176 × 10−19 C

These constants were obtained from The NIST Reference on Constants, Units and Uncertainty.