HP 48g Graphing Calculator - Manual (Page 358)

Using the Constants Library
The Constants Library contains a collection of common physical
constants and quantities. You can use them in equations and
programs. (Several of these constants are used by the Equation
Library.) The following table lists them in the order they appear in
the Constants Library.
Constants Library
Name Description Value (SI)
NA Avogadro’s number 6.0221367E23 gmol“i
k Boltzmann constant 1.380658E-23 J/K
Vm Molar volume 22.4141 1/gmol
R Lfniversal gas constant 8.31451 J/(gmoLK)
StdT Standard temperature 273.15 K
StdP Standard pressure 101.325 kPa
(7 Stefan-Boltzmann
constant 5.67051E-8 W/(m2-K4)
C
Speed of light in vacuum 299792458 m/s
eO Permittivity of vacuum 8.85418781761E-12 F/m
fiO Permeability of vacuum 1.25663706144E-6 H/m
g
Acceleration of gravity 9.80665 m/s2
G Gravitational constant 6.67259E-11 m^/Cs^dcg)
h Planck’s constant 6.6260755E-34 J-s
hbar Dirac’s constant 1.05457266E-34 J-s
q Electron charge 1.60217733E-19 C
me Electron rest mass 9.1093897E-31 kg
qme q/me 175881962000 C/kg
mp Proton rest mass 1.6726231E-27 kg
mpme mp/me 1836.152701
a Fine structure constant 0.00729735308
Magnetic flux quantum 2.06783461E-15 Wb
F Faraday constant 96485.309 C/gmol
25
25-12 The Equation Library