不平衡多元组件共存的理论
Yu-Jen Chiu1, Daniel Evans1,2, Ahmad K Omar1,2
1University of California, Department of Materials Science and Engineering, Berkeley, California 94720, USA.
Physical review. E
|December 23, 2025
概括
科学家们开发了一种新的机械理论,用于在不平衡系统中多元组件相位共存. 这个框架将平衡概念概括起来,为理解超越平衡条件的复杂相位过渡提供了一条途径.
科学领域:
- 物理化学 物理化学
- 统计力学 统计力学
- 软物质物理学 软物质物理学
背景情况:
- 多组件相位分离在生物和合成系统中很常见.
- 均衡热力学定义了相位边界,但对于不均衡的系统是不够的.
- 需要一个不平衡理论来描述复杂系统中的相位共存.
研究的目的:
- 为平衡之外的多组件相位共存开发一个机械理论.
- 将化学潜力和热力学压力等平衡概念概括为非平衡状态.
- 建立一个基本的框架来理解高维不平衡阶段过渡.
主要方法:
- 关于共存标准的机械理论的发展.
- 平衡状态函数 (化学潜力,热力学压力) 到不平衡状态的概括.
- 使用现象学多元组件活性模型B+进行数字验证.
主要成果:
- 建立了多元组件共存的机械理论.
- 共同存在的标准是用一般化状态函数的等式来制定的.
- 对于各种系统,这些通用概念的存在得到了数值证实.
结论:
- 开发的理论为多元组件相位共存提供了一种新的机械方法.
- 它将传统的热力学概念扩展到不平衡场景.
- 这项工作为一个不平衡阶段过渡的综合理论奠定了基础.
相关概念视频
The Equilibrium Constant
55.6K
Consider the oxidation of sulfur dioxide:
55.6K
Stability of Equilibrium Configuration
753
Understanding the stability of equilibrium configurations is a fundamental part of mechanical engineering. In any system, there are three distinct types of equilibrium: stable, neutral, and unstable.
A stable equilibrium occurs when a system tends to return to its original position when given a small displacement, and the potential energy is at its minimum. An example of a stable equilibrium is when a cantilever beam is fixed at one end and a weight is attached to the other end. If the weight...
A stable equilibrium occurs when a system tends to return to its original position when given a small displacement, and the potential energy is at its minimum. An example of a stable equilibrium is when a cantilever beam is fixed at one end and a weight is attached to the other end. If the weight...
753
Theories of Dissolution: The Danckwerts' Model and Interfacial Barrier Model
735
Various dissolution theories provide insight into the factors that influence the dissolution rate. Danckwerts' Model suggests that turbulence, rather than a stagnant layer, characterizes the dissolution medium at the solid-liquid interface. In this model, the agitated solvent contains macroscopic packets that move to the interface via eddy currents, facilitating the absorption and delivery of the drug to the bulk solution. The regular replenishment of solvent packets maintains the...
735
Complexation Equilibria: Overview
1.3K
Complexation reactions take place when dative or coordinate covalent bonds form between metal ions and ligands. The compounds formed in these reactions are called coordination compounds. The number of bonds formed between the metal ion and the ligands is called its coordination number. Generally, most metal ions in an aqueous solution are solvated by water molecules and thus exist as aqua complexes.
The equilibrium constant of the complexation reaction is represented as the formation constant...
The equilibrium constant of the complexation reaction is represented as the formation constant...
1.3K
First Law: Particles in One-dimensional Equilibrium
7.9K
Newton's first law of motion states that a body at rest remains at rest, or if in motion, remains in motion at constant velocity, unless acted on by a net external force. It also states that there must be a cause for any change in velocity (a change in either magnitude or direction) to occur. This cause is a net external force. For example, consider what happens to an object sliding along a rough horizontal surface. The object quickly grinds to a halt, due to the net force of friction. If...
7.9K
Dynamic Equilibrium
61.4K
A reversible chemical reaction represents a chemical process that proceeds in both forward (left to right) and reverse (right to left) directions. When the rates of the forward and reverse reactions are equal, the concentrations of the reactant and product species remain constant over time and the system is at equilibrium. A special double arrow is used to emphasize the reversible nature of the reaction. The relative concentrations of reactants and products in equilibrium systems vary greatly;...
61.4K


