10.4: Phase Equilibrium - Chemistry LibreTexts
网页When a liquid is heated, its molecules obtain sufficient kinetic energy to overcome the forces holding them in the liquid and they escape into the gaseous phase. By doing so, they generate a population of molecules in the vapor phase above the liquid that produces a pressure—the vapor pressure of the liquid.
相平衡 - 百度百科
网页相平衡（phase equilibrium）是指多相系统中各相变化达到的极限状态。 此时在宏观上已经没有任何物质在相际传递，但在微观上仍有方向相反的物质在相际传递，且速度相等，故传递的净速度为零.化工热力学研究的两相系统的平衡，有气液平衡、气固平衡、汽液平衡、汽固平衡、液液平衡、液固平衡和固固平衡；相数多于2的系统，有气液固平衡、汽液液平衡等。 [1] 中文名. 相平衡. 外文名. phase equilibrium. 释 义. 各相的性质和数量均不随时间变化. …
8: Phase Equilibrium - Chemistry LibreTexts
网页2022年4月13日 · The thermodynamic criterion for phase equilibrium is simple. It is based upon the chemical potentials of the components in a system. For simplicity, consider a system with only one component. For the overall system to be in equilibrium, the chemical potential of the compound in each phase present must be the same.
23: Phase Equilibria - Chemistry LibreTexts
网页Phase equilibria is the term used to describe with two or more phases co-exist (in equilibrium). The stability of phases can be predicted by the chemical potential, in that the most stable form of the substance will have the minimum chemical potential at the given temperature and pressure.
PHASE EQUILIBRIUM
网页Phase equilibrium conditions of a system comprising v components (where v ≥ 1) and φ phases (where φ ≥ 1) results from the Second Law of Thermodynamics and may be expressed by following equalities: temperatures T (α) (thermal equilibrium, in which there are no heat flows); pressures p (α) (mechanical equilibrium, i.e., the phases are ...
网页Figure 3.5 is a schematic diagram of an experiment taken from Hildebrand (1970), which shows seven phases in equilibrium at near-ambient temperature. The phase on top is air, followed by six liquid phases in order of increasing density: hexane-rich, aniline-rich, water-rich, phosphorous, gallium and mercury.
Phase Equilibrium and Phase Diagram | SpringerLink
网页2019年11月16日 · This chapter describes the fundamental to understand the phase equilibrium and the phase diagram: the phase rule, the phase transformation with the change in the temperature or the pressure, the relationship between the temperature and the pressure in the phase transformation (so-called the Clausius–Clapeyron equation), and the phase change ...
网页The theoretical basis of chemical equilibria and chemical changes is covered with an emphasis on the properties of phase diagrams. Starting with the basic principles, discussion moves to systems involving multiple phases. New chapters cover irreversible thermodynamics, extremum principles and the thermo-dynamics of surfaces and interfaces.
Phase equilibria - SpringerLink
网页Phase equilibria is the application of the principles of thermodynamics to the study of equilibrium relationships within or between phases, corresponding to homogeneous and heterogeneous phase equilibria, respectively. These phases may be minerals within a rock, a fluid percolating through the pore space of a sediment, or a gas, or a ...
Phase Equilibria, Phase Diagrams and Phase Transformations
网页Accurate use and interpretation however, requires a strong understanding of the thermodynamic principles that underpin phase equilibrium, transformation and state. This fully revised and updated edition covers the fundamentals of thermodynamics, with a view to modern computer applications.