V2EX constant-volume

Constant-Volume

定义 Definition

constant-volume(定容的 / 体积不变的):指在某个过程或条件下,系统的体积保持不变。在热力学中常见于“定容过程(constant-volume process)”,此时体积 \(V\) 恒定,压力与温度可能随之变化。(该词也可作形容词用于设备或控制方式,如“定容燃烧”“定容室”。)

例句 Examples

The experiment heats the gas at constant volume.
实验在体积不变的条件下加热气体。

In a constant-volume process, the pressure typically rises as the temperature increases, because the container does not expand.
在定容过程中,由于容器不膨胀,温度升高时压力通常会上升。

发音 Pronunciation

/knstnt vljum/

词源 Etymology

constant 来自拉丁语 constans(“坚定的、持续不变的”),经法语进入英语;volume 来自拉丁语 volumen(原义与“卷轴、卷册”相关,后引申为“容量、体积”)。组合成 constant-volume,字面义即“体积保持恒定的”。

相关词 Related Words

文学与著作 Literary Works

  • Thermodynamics: An Engineering Approach(Yunus A. engel & Michael A. Boles)
  • Fundamentals of Physics(David Halliday, Robert Resnick & Jearl Walker)
  • Introduction to Chemical Engineering Thermodynamics(J. M. Smith, H. C. Van Ness & M. M. Abbott)
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