Search results
Results from the WOW.Com Content Network
Phase transitions commonly refer to when a substance transforms between one of the four states of matter to another. At the phase transition point for a substance, for instance the boiling point, the two phases involved - liquid and vapor, have identical free energies and therefore are equally likely to exist. Below the boiling point, the ...
Phase transition, a transformation of the state of matter; for example, the change between a solid and a liquid, between liquid and gas or between gas and plasma; Quantum phase transition, a phase transformation between different quantum phases; Quantum Hall transitions, a quantum phase transition that occurred because of the quantum Hall effect
McMillan's model, proposed by William McMillan, [69] is an extension of the Maier–Saupe mean field theory used to describe the phase transition of a liquid crystal from a nematic to a smectic A phase. It predicts that the phase transition can be either continuous or discontinuous depending on the strength of the short-range interaction ...
A democratic transition describes a phase in a country's political system as a result of an ongoing change from an authoritarian regime to a democratic one. [ 1 ] [ 2 ] [ 3 ] The process is known as democratisation , political changes moving in a democratic direction. [ 4 ]
This transition is in contrast to the freezing or crystallization transition, which is a first-order phase transition in the Ehrenfest classification and involves discontinuities in thermodynamic and dynamic properties such as volume, energy, and viscosity. In many materials that normally undergo a freezing transition, rapid cooling will avoid ...
Deposition is the phase transition in which gas transforms into solid without passing through the liquid phase. Deposition is a thermodynamic process. The reverse of deposition is sublimation and hence sometimes deposition is called desublimation.
A phase transition from a ferromagnet to a paramagnet is continuous and is of second order. (See phase transition for Ehrenfest's classification of phase transitions by the derivative of free energy which is discontinuous at the transition). These continuous transitions from an ordered to a disordered phase are described by an order parameter ...
Stage-crisis view is a theory of adult development that was established by Daniel Levinson. [1] [2] Although largely influenced by the work of Erik Erikson, [3] Levinson sought to create a broader theory that would encompass all aspects of adult development as opposed to just the psychosocial.