V2EX isochoric process

Isochoric Process

释义 Definition

等容过程(定容过程):热力学过程中体积保持不变(\( \Delta V = 0 \))。在理想气体情况下,因体积不变,系统对外不做体积功(\( W=\int P\,dV=0 \)),热量的输入/输出主要体现为内能与温度的变化。

发音 Pronunciation (IPA)

/askrk prss/

例句 Examples

An isochoric process happens at constant volume.
等容过程是在体积保持不变的条件下发生的。

In an isochoric process for an ideal gas, all added heat increases internal energy, raising the temperature and pressure while the volume stays constant.
对理想气体而言,在等容过程中,加入的热量全部转化为内能的增加,使温度和压强升高,而体积保持不变。

词源 Etymology

isochoric 由前缀 iso-(“相同、等同”,源自希腊语 isos)+ -choric(与“空间/位置”相关,源自希腊语 chōros,可理解为“空间/容积”)构成,整体含义即“等容的”。process 来自拉丁语 processus,意为“进行、过程”。合起来就是“等容过程”。(在工程与物理语境中也常称 iso-volumetric / isovolumetric process。)

相关词 Related Words

文献与著作 Notable Works

  • Thermodynamics: An Engineering Approach(engel & Boles,工程热力学经典教材中系统使用该术语)
  • Fundamentals of Physics(Halliday, Resnick & Walker,基础物理/热学章节常讨论等容过程)
  • Heat and Thermodynamics(Zemansky & Dittman,热力学经典教材中出现并用于推导热容关系)
  • Physical Chemistry(Atkins,物理化学中用于讨论状态方程与热力学过程)
  • The Feynman Lectures on Physics, Vol. I(费曼物理学讲义中以“定容/定压”等过程阐释热学概念)
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