V2EX thermodynamic potential

Thermodynamic Potential

释义 Definition

热力学势:在热力学中用来描述系统状态与能量“可用性”的一类状态函数。不同的热力学势在不同的约束条件下(如恒温、恒压等)特别有用,常见的有内能亥姆霍兹自由能吉布斯自由能等。(在更广义语境中也可指数学/物理里的“势函数”,但这里以热力学常用义为主。)

发音 Pronunciation (IPA)

/θrmodanmk ptnl/

例句 Examples

A thermodynamic potential helps us predict which direction a process will go.
热力学势帮助我们预测过程将朝哪个方向进行。

Under constant temperature and pressure, the Gibbs free energy is the thermodynamic potential that determines whether a reaction is spontaneous.
在恒温恒压条件下,吉布斯自由能是决定反应是否自发进行的热力学势。

词源 Etymology

thermodynamicthermo-(热,源自希腊语 thermē,意为“热”)与 dynamic(动力的,源自希腊语dynamis,意为“力量”)构成;potential(势、潜能)来自拉丁语 potentia,意为“能力、力量”。合起来指“用于刻画热与能量变化规律的势函数/能量函数”。

相关词 Related Words

文学与经典著作 Literary Works

  • Herbert B. Callen,《Thermodynamics and an Introduction to Thermostatistics》:系统讨论热力学势及其在不同自然变量下的形式。
  • Richard P. Feynman,《The Feynman Lectures on Physics, Vol. I》:在热学与统计物理相关章节中涉及自由能等热力学势概念。
  • Lev D. Landau & Evgeny M. Lifshitz,《Statistical Physics》:从统计物理角度推导并使用各类热力学势与势函数。
  • F. Reif,《Fundamentals of Statistical and Thermal Physics》:用清晰的物理直觉解释自由能等热力学势的意义与应用。
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