“Boltzmann constant”的概念、定义、翻译、参考文献-科学参考

Boltzmann constant

Physics

Symbol k or k_B. The ratio of the universal gas constant (R) to the Avogadro constant (N_A). It may be thought of therefore as the gas constant per molecule:

$k = R / N_{A} = 1.380 658 (12) \times 10^{- 23} J K^{- 1}$

It is named after Ludwig Boltzmann.

Astronomy

A constant that relates the kinetic energy of a particle in a gas to the temperature of that gas. It has the value 1.380 6485 × 10⁻²³ joules per kelvin. The particles can be molecules, atoms, ions, or electrons. The Boltzmann constant relates pressure, p, and temperature, T, by the equation p = nkT, where n is the number of particles per unit volume. In astrophysics, this equation is of importance in understanding the interiors and surface layers of stars, and the atmosphere of planets. The constant is named after the Austrian physicist Ludwig Edward Boltzmann (1844–1906).

Chemistry

The ratio of the universal gas constant (R) to the Avogadro constant (N_A). It may be thought of therefore as the gas constant per molecule:
$k = R / N_{A} = 1.380 648 52 {(79) \times 10}^{- 23} {J K}^{- 1}$
It is named after Ludwig Boltzmann.

Chemical Engineering

The ratio of the universal gas constant, R, to Avogadro’s constant, $N_{A} : k = R / N_{A} = 1.380 658 \times 10^{- 23} J K^{- 1}$ . It may therefore be seen as the gas constant per molecule. It is named after Austrian physicist Ludwig Eduard Boltzmann (1844–1906).

Geology and Earth Sciences

The ratio of the ideal gas constant to the Avogadro constant: k = R/N_A = 1.3805 × 10⁻²³ J/K, where R is the ideal gas constant (equal to 8.3 J/mol/K), and N_A is the Avogadro constant.

单词	Boltzmann constant
释义	Boltzmann constant Physics Symbol k or k_B. The ratio of the universal gas constant (R) to the Avogadro constant (N_A). It may be thought of therefore as the gas constant per molecule: $k = R / N_{A} = 1.380 658 (12) \times 10^{- 23} J K^{- 1}$ It is named after Ludwig Boltzmann. Astronomy A constant that relates the kinetic energy of a particle in a gas to the temperature of that gas. It has the value 1.380 6485 × 10⁻²³ joules per kelvin. The particles can be molecules, atoms, ions, or electrons. The Boltzmann constant relates pressure, p, and temperature, T, by the equation p = nkT, where n is the number of particles per unit volume. In astrophysics, this equation is of importance in understanding the interiors and surface layers of stars, and the atmosphere of planets. The constant is named after the Austrian physicist Ludwig Edward Boltzmann (1844–1906). Chemistry The ratio of the universal gas constant (R) to the Avogadro constant (N_A). It may be thought of therefore as the gas constant per molecule: $k = R / N_{A} = 1.380 648 52 {(79) \times 10}^{- 23} {J K}^{- 1}$ It is named after Ludwig Boltzmann. Chemical Engineering The ratio of the universal gas constant, R, to Avogadro’s constant, $N_{A} : k = R / N_{A} = 1.380 658 \times 10^{- 23} J K^{- 1}$ . It may therefore be seen as the gas constant per molecule. It is named after Austrian physicist Ludwig Eduard Boltzmann (1844–1906). Geology and Earth Sciences The ratio of the ideal gas constant to the Avogadro constant: k = R/N_A = 1.3805 × 10⁻²³ J/K, where R is the ideal gas constant (equal to 8.3 J/mol/K), and N_A is the Avogadro constant.
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