V2EX heat bath

Heat Bath

Definition / 释义

热浴(物理学):指一个温度保持恒定、热容量极大(可视为“无限大”)的环境或系统(也称热库)。当某个系统与热浴接触时,可以与之交换热量,但热浴自身温度几乎不变,常用于描述热平衡统计力学中的理想条件。
(注:在日常语境中也可指“热水浴/温水浴”等,但学术语境最常见的是上述物理学含义。)

Pronunciation / 发音

  • /hit bθ/
  • /hit bθ/

Examples / 例句

We kept the solution in a heat bath to maintain a steady temperature.
我们把溶液放在热浴中,以保持稳定的温度。

In statistical mechanics, a system in contact with a heat bath is often modeled by the canonical ensemble.
在统计力学中,与热浴接触的系统常用正则系综来建模。

Etymology / 词源

heat(热) + bath(浴) 组成。“bath” 原指把物体浸在某种介质中(如水浴、油浴)以稳定其温度;在物理学里借用这一意象,把“提供并吸收热量、但温度近似不变”的理想环境称为 heat bath

Related Words / 相关词

  • Heat Reservoir
  • Thermal Reservoir
  • Thermostat
  • Canonical Ensemble
  • Thermal Equilibrium
  • Isothermal
  • Temperature
  • Calorimeter
  • Literary Works / 文学与著作示例

    • An Introduction to Thermal Physics(Daniel V. Schroeder):用“heat bath/thermal reservoir”解释热接触与正则系综。
    • Thermodynamics and an Introduction to Thermostatistics(Herbert B. Callen):以热浴作为理想热库来讨论平衡态与温度定义。
    • Statistical Physics(Landau & Lifshitz):在统计物理框架中频繁使用“heat bath”来刻画与环境的热交换。
    • The Feynman Lectures on Physics(Richard P. Feynman):在热学与统计观点的讲解中涉及将系统与热库(热浴)接触的思想。
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