V2EX heat-capacity

Heat Capacity

Definition / 定义

热容:使某个物体(或系统)的温度升高 1°C(或 1 K) 所需要吸收的热量。热容越大,物体“升温越不容易”。在热力学中常见 定压热容(\(C_p\))与 定容热容(\(C_v\))。

Pronunciation / 发音

/hit kpsti/

Examples / 例句

Water has a high heat capacity, so it warms up slowly.
水的热容很大,所以升温很慢。

Because the metal block’s heat capacity is small, a little heat makes its temperature rise quickly, which affects the accuracy of the experiment.
由于金属块的热容较小,少量热量就会让它的温度迅速上升,从而影响实验的准确性。

Etymology / 词源

heat 源自古英语 htu(“热、热度”);capacity 源自拉丁语 capacitas(“容纳的能力”)。合起来表示“容纳(吸收)热量的能力”,即物体在温度变化时所需热量的大小。

Related Words / 相关词汇

Literary Works / 文学作品

  • James Clerk Maxwell, Theory of Heat(《热学理论》)
  • Enrico Fermi, Thermodynamics(《热力学》)
  • Richard P. Feynman, The Feynman Lectures on Physics(《费曼物理学讲义》)
  • J. Willard Gibbs, On the Equilibrium of Heterogeneous Substances(《论非均相物质的平衡》)
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