TABLA DE CONSTANTES

ALGUNAS CONSTANTES
1. Constantes f´ısicas fundamentales

Cociente deuter´
on-electr´on:
md /me = 3 670.482 9550.

Carga del electr´on:
e = 1.602 176 53(14) × 10−19 C
= 4.803 204 197 × 10−10 uesCociente helio-electr´on:
md /me = 7 294.299 508.
3. Constantes f´ısicas derivadas

Constante de la gravitaci´
on universal:
G = 6.674 2(10) × 10−11 kg−1 m3 s−2
= 6.674 2(10) × 10−8 g−1 cm3 s−2Aceleraci´
on de ca´ıda libre:
2
g = GM⊕ /R⊕
= 980.665 cm s−1

Constante de Boltzmann:
k = 1.380 6505(24) × 10−16 erg K−1
= 8.617 342 × 10−5 eV K−1

Constante de estructura fina:
α ≡ e2 /¯hc = 7.297 352 568(24)× 10−3
= 1/137.035 999 11(46)

Constante de Planck:
h = 6.626 069 3(11) × 10−27 erg s
= 4.135 667 43(35) × 10−15 eV s
¯h ≡ h/2π = 1.054 571 68(18) × 10−27 erg s
= 6.582 119 15(56) × 10−16 eV sConstante de los gases:
R ≡ Nk
= 8.314 472(15) × 107 erg K−1 mol−1
= 8.314 472(15) J K−1mol−1

Constante magn´etica:
µ0 = 4π10−7 N A−2

Constante de Planck × c:
hc = 1.986 445 6(02) × 10−15 erg cm
= 1.239841 9(05) × 10−4 eV cm
¯hc = 3.161 526 3(66) × 10−16 erg cm
= 1.973 269 6(81) × 10−5 eV cm

N´
umero de Avogadro:
N = 6.022 14115(10) × 1023 mol−1

Constante de Rydberg: R∞ ≡ me e4 /4π¯h3 c
R∞ = 1.097373 156 852 5(73) × 105 cm−1

Velocidad de la luz:
c = 299 792 458 m s−1

Constante de Wien:
b ≈ hc/4.9651k = 0.289 776 86 cm K−1

Constante el´ectrica:
ε0 = 8.854 187 817 × 10−12 F/m

Masa delelectr´on:
me = 9.109 3826(16) × 10−28 g
= 510 999 eV

Constante(s)de Stefan-Boltzmann:
σ ≡ 2π 5 k 4 /15c2 h3
= 5.670 400 × 10−5 erg cm−2 s−1 K−4
a ≡ 4σ/c = 8π 5 k 4 /15c3 h3
= 7.565 767 × 10−15 erg cm−3K−4

Masa del neutr´on:
mn = 1.674 929 × 10−24 g
= 939.566 MeV

Longitud de onda de Compton:
λc ≡ h/mc = 2.426 310 215 × 10−10 cm
−
λc ≡ ¯h/mc = 3.861 592 642 × 10−11 cm

Masa del prot´on:
mp = 1.672 6231 × 10−24 g
= 938.272 MeV

Magnet´on de Bohr:
µb ≡ e¯h/2me c = 9.273 2 × 10−21 erg G−1

2. Masas elementales

Magnet´on nuclear:
µn ≡ e¯h/2mp c = 5.050 82 × 10−24 erg G−1

Masa del ´
atomo de...