In thermodynamics, a spontaneous process is a process which occurs without any external input to the system. A more technical definition is the time-evolution...

Spontaneous symmetry breaking is a spontaneous process of symmetry breaking, by which a physical system in a symmetric state spontaneously ends up in an...

endothermic, otherwise non-spontaneous process. The chemical energy stored can be freed by the inverse (spontaneous) process: combustion of sugar, which...

combustion Spontaneous Music Ensemble Spontaneous order Spontaneous process Spontaneous remission Spontaneous symmetry breaking Spontaneous (album) by...

is a spontaneous process at a certain temperature, the products have a lower Gibbs free energy G = H – TS than the reactants (an exergonic process), even...

Spontaneous generation is a superseded scientific theory that held that living creatures could arise from non-living matter and that such processes were...

inciting particle to trigger the decay; it is a purely probabilistic process. Spontaneous fission is a dominant decay mode for superheavy elements, with nuclear...

"self-organization" is more often used for physical changes and biological processes, while "spontaneous order" is typically used to describe the emergence of various...

A polytropic process is a thermodynamic process that obeys the relation: p V n = C {\displaystyle pV^{n}=C} where p is the pressure, V is volume, n is...

thermodynamics and provides necessary criteria for spontaneous processes. For example, the first law allows the process of a cup falling off a table and breaking...

Spontaneous human combustion (SHC) is the pseudoscientific concept of the spontaneous combustion of a living (or recently deceased) human body without...

free expansion) Adiabatic process Cyclic process Isobaric process Isochoric process Polytropic process Spontaneous process Keenan, J. H. (1970). "Chapter...

Spontaneous is a 2020 American coming-of-age black comedy horror film, written, produced and directed by Brian Duffield, in his directorial debut. It...

internal stresses is a thermodynamically spontaneous process; however, at room temperatures, it is a very slow process. The high temperatures at which annealing...

which are useful for determining conditions for equilibrium and spontaneous processes. The study of the behaviours of electrons, electric media, magnets...

Spontaneous emission is the process in which a quantum mechanical system (such as a molecule, an atom or a subatomic particle) transits from an excited...

counter-intuitive example of entropic force is protein folding, which is a spontaneous process and where hydrophobic effect also plays a role. Structures of water-soluble...

value of the change in free energy is a necessary condition for a process to be spontaneous; this is the most useful form of the second law of thermodynamics...

mathematical methods to the study of chemical questions and the spontaneity of processes. The structure of chemical thermodynamics is based on the first...

is the spontaneous process of one unstable subatomic particle transforming into multiple other particles. The particles created in this process (the final...

Spontaneous combustion or spontaneous ignition is a type of combustion which occurs by self-heating (increase in temperature due to exothermic internal...

metallurgy industries. The emf for this process is approximately −4 V indicating a (very) non-spontaneous process. In order for this reaction to occur the...

indicates a thermodynamically favorable (spontaneous) process, while a positive ΔG denotes a non-spontaneous one. When both ΔH and ΔS are positive (endothermic...

Chronic spontaneous urticaria (CSU) also known as Chronic idiopathic urticaria (CIU) is defined by the presence of wheals, angioedema, or both for more...

hydrolysis. The breakdown of the proteins of a decomposing body is a spontaneous process. Protein hydrolysis is accelerated as the anaerobic bacteria of the...

between development and teaching. He said that development is a spontaneous process that is initiated and completed by the children, stemming from their...

Spontaneous parametric down-conversion (also known as SPDC, parametric fluorescence or parametric scattering) is a nonlinear instant optical process that...

in youth and community organizations. This type of education is a spontaneous process, which helps people to learn information in a new way. It helps to...

primary spontaneous pneumothorax is one that occurs without an apparent cause and in the absence of significant lung disease. A secondary spontaneous pneumothorax...

fermentation a spontaneous process that gives rise to many byproducts that contribute to the flavor and aroma of tequila. During the fermentation process, inoculum...