V2EX charge neutrality

Charge Neutrality

Definition / 定义

电荷中性(电中性):指一个系统(如溶液、导体、等离子体或整体物质)在宏观尺度上正电荷与负电荷总量相等,因此净电荷为零的状态或原则。(在局部微观区域仍可能存在电荷分离。)

Pronunciation / 发音

/trd njutrlti/

Examples / 例句

Charge neutrality is maintained in the solution.
溶液中保持电荷中性。

In electrolytes, charge neutrality holds overall even though ions migrate under an electric field.
在电解质中,即使离子在电场下迁移,整体上仍满足电荷中性。

Etymology / 词源

charge 源自中古法语 charge(负担、装载),再追溯到拉丁语 carricare(装载、加重);在科学语境中引申为“电荷”。neutrality 来自拉丁语 neutralis(中立的、不偏向任何一方),表示“中性/不带倾向”。合起来即“电荷的中性状态”,用于物理、化学与电化学中描述“净电荷为零”的约束或近似。

Related Words / 相关词

Literary Works / 文学作品

  • Physical Chemistry(Atkins & de Paula,《阿特金斯物理化学》):在溶液与电解质章节讨论电中性条件。
  • Electrochemical Methods: Fundamentals and Applications(Bard & Faulkner,《电化学方法》):用电荷中性约束解释电解质与电双层相关模型。
  • Introduction to Electrodynamics(David J. Griffiths,《电动力学导论》):在静电学与介质讨论中涉及“整体电荷为零/中性体系”的表述与应用。
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