“Stefan’s law”的概念、定义、翻译、参考文献-科学参考

Stefan’s law

Physics

The total energy radiated per unit surface area of a black body in unit time is proportional to the fourth power of its thermodynamic temperature. The constant of proportionality, the Stefan constant (or Stefan–Boltzmann constant) has the value 5.6697×10⁻⁸ J s⁻¹ m⁻² K⁻⁴. The law was discovered by the Austrian physicist Joseph Stefan (1853–93) and theoretically derived by Ludwig Boltzmann.

Astronomy

Chemical Engineering

A law of thermal radiation in which the radiation of all wavelengths per second per square metre from a black body at an absolute temperature T to surroundings at temperature T_o is proportional to the fourth power of the absolute temperatures: $q = σ (T^{4} - T_{o}^{4})$ . The proportionality constant, σ, is known as the Stefan–Boltzmann constant equal to 5.669 7 × 10⁻⁸ W m⁻² K⁻⁴ . The law is named after Austrian physicists Josef Stefan (1853–93) and Ludwig Eduard Boltzmann (1844–1906) who theoretically derived the equation.

单词	Stefan’s law
释义	Stefan’s law Physics The total energy radiated per unit surface area of a black body in unit time is proportional to the fourth power of its thermodynamic temperature. The constant of proportionality, the Stefan constant (or Stefan–Boltzmann constant) has the value 5.6697×10⁻⁸ J s⁻¹ m⁻² K⁻⁴. The law was discovered by the Austrian physicist Joseph Stefan (1853–93) and theoretically derived by Ludwig Boltzmann. Astronomy An alternative name for the Stefan–Boltzmann law. Chemical Engineering A law of thermal radiation in which the radiation of all wavelengths per second per square metre from a black body at an absolute temperature T to surroundings at temperature T_o is proportional to the fourth power of the absolute temperatures: $q = σ (T^{4} - T_{o}^{4})$ . The proportionality constant, σ, is known as the Stefan–Boltzmann constant equal to 5.669 7 × 10⁻⁸ W m⁻² K⁻⁴ . The law is named after Austrian physicists Josef Stefan (1853–93) and Ludwig Eduard Boltzmann (1844–1906) who theoretically derived the equation.
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