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Physical constant

Gas Constant

The molar gas constant in the ideal gas law.

R = 8.314462 J/(mol·K)

Other constants

Speed of Light Gravitational Constant Planck Constant Reduced Planck Constant Elementary Charge Boltzmann Constant Avogadro Constant Vacuum Permittivity Vacuum Permeability Electron Mass Proton Mass Stefan–Boltzmann Constant