Skip to main content
Global

22.4: Constantes físicas fundamentais

  1. Last updated
  2. Save as PDF
  • Page ID
    198392

    • \( \newcommand{\vecs}[1]{\overset { \scriptstyle \rightharpoonup} {\mathbf{#1}} } \) \( \newcommand{\vecd}[1]{\overset{-\!-\!\rightharpoonup}{\vphantom{a}\smash {#1}}} \)\(\newcommand{\id}{\mathrm{id}}\) \( \newcommand{\Span}{\mathrm{span}}\) \( \newcommand{\kernel}{\mathrm{null}\,}\) \( \newcommand{\range}{\mathrm{range}\,}\) \( \newcommand{\RealPart}{\mathrm{Re}}\) \( \newcommand{\ImaginaryPart}{\mathrm{Im}}\) \( \newcommand{\Argument}{\mathrm{Arg}}\) \( \newcommand{\norm}[1]{\| #1 \|}\) \( \newcommand{\inner}[2]{\langle #1, #2 \rangle}\) \( \newcommand{\Span}{\mathrm{span}}\) \(\newcommand{\id}{\mathrm{id}}\) \( \newcommand{\Span}{\mathrm{span}}\) \( \newcommand{\kernel}{\mathrm{null}\,}\) \( \newcommand{\range}{\mathrm{range}\,}\) \( \newcommand{\RealPart}{\mathrm{Re}}\) \( \newcommand{\ImaginaryPart}{\mathrm{Im}}\) \( \newcommand{\Argument}{\mathrm{Arg}}\) \( \newcommand{\norm}[1]{\| #1 \|}\) \( \newcommand{\inner}[2]{\langle #1, #2 \rangle}\) \( \newcommand{\Span}{\mathrm{span}}\)\(\newcommand{\AA}{\unicode[.8,0]{x212B}}\)

    Constantes físicas fundamentais
    Nome e símbolo Valor
    unidade de massa atômica (amu) 1.6605402××10 −27 kg
    Número de Avogadro 6.02214076××10 23 mol −1
    Constante de Boltzmann (k) 1.380649××10 −23 J K −1
    relação carga/massa para elétron (e/m e) 1.75881962××10 × 11° C kg −1
    unidade fundamental de carga (e) 1.602176634××10 −19° C
    massa de repouso de elétrons (m e) 9.1093897××10 −31 kg
    Constante de Faraday (F) 9.6485309××10 ~ 4° C mol −1
    constante de gás (R) 8.205784××10 −2 L atm mol −1 K −1 = 8,314510 J mol −1 K −1
    volume molar de um gás ideal, 1 atm, 0 °C 22,41409 L mol —1
    volume molar de um gás ideal, 1 bar, 0 °C 22,71108 L mol -1
    massa de descanso de nêutrons (m n) 1.6749274××10 −27 kg
    Constante de Planck (h) 6.62607015××10 −34 J s
    massa de descanso de prótons (m p) 1.6726231××10 −27 kg
    Constante de Rydberg (R) 1.0973731534××10 7 m −1 = 2,1798736××10 −18 J
    velocidade da luz (no vácuo) (c) 2,99792458××10 x 8 mm é −1
    Tabela D1