University:
Massachusetts Institute of Technology
Course:
3.091SC | Introduction to Solid State Chemistry
Academic year:

2023
Views:

353

Pages:

1
Author:

handledagk0

Fundamental Physical Constants — Frequently used constants Quantity Symbol Value Unit Relative std. uncert. ur m s−1 N A−2 N A−2 F m−1 (exact) �0 299 792 458 4π × 10−7 = 12.566 370 614... × 10−7 8.854 187 817... × 10−12 G 6.674 28(67) × 10−11 m3 kg−1 s−2 1.0 × 10−4 Planck constant h/2π elementary charge magnetic ﬂux quantum h/2e conductance quantum 2e2/h h h̄ e Φ0 G0 6.626 068 96(33) × 10−34 1.054 571 628(53) × 10−34 1.602 176 487(40) × 10−19 2.067 833 667(52) × 10−15 7.748 091 7004(53) × 10−5 Js Js C Wb S 5.0 × 10−8 5.0 × 10−8 2.5 × 10−8 2.5 × 10−8 6.8 × 10−10 electron mass proton mass proton-electron mass ratio ﬁne-structure constant e2/4π�0 h̄c inverse ﬁne-structure constant me mp mp /me α α−1 9.109 382 15(45) × 10−31 1.672 621 637(83) × 10−27 1836.152 672 47(80) 7.297 352 5376(50) × 10−3 137.035 999 679(94) kg kg 5.0 × 10−8 5.0 × 10−8 4.3 × 10−10 6.8 × 10−10 6.8 × 10−10 Rydberg constant α2 me c/2h Avogadro constant Faraday constant NA e molar gas constant Boltzmann constant R/NA Stefan-Boltzmann constant (π2 /60)k 4/h̄3 c2 R∞ NA , L F R k 10 973 731.568 527(73) 6.022 141 79(30) × 1023 96 485.3399(24) 8.314 472(15) 1.380 6504(24) × 10−23 m−1 mol−1 C mol−1 J mol−1 K−1 J K−1 6.6 × 10−12 5.0 × 10−8 2.5 × 10−8 1.7 × 10−6 1.7 × 10−6 σ 5.670 400(40) × 10−8 W m−2 K−4 7.0 × 10−6 J 2.5 × 10−8 kg 5.0 × 10−8 speed of light in vacuum magnetic constant c, c0 µ0 electric constant 1/µ0 c2 Newtonian constant of gravitation electron volt: (e/C) J (uniﬁed) atomic mass unit 1 1 u = mu = 12 m(12 C) = 10−3 kg mol−1/NA Non-SI units accepted for use with the SI eV 1.602 176 487(40) × 10−19 u 1.660 538 782(83) × 10−27 (exact) (exact)