An explosion is a type of spontaneous chemical reaction that, once initiated, is driven by both a large exothermic change (great release of heat) and a large positive entropy change (great quantities of gases are released) $\ce{^1}$ from reactants to products (a thermodynamically favorable process). Key Areas Covered. 0. An unstable person…. This definition excludes substances or mixtures classified under the GHS as explosive, organic peroxides or … Apparently a good base is an unstable species. Other articles where Stability is discussed: hydrocarbon: Aromatic hydrocarbons: …properties, especially that of special stability, and eventually aromaticity came to be defined in terms of stability alone. The modern definition states that a compound is aromatic if it is significantly more stable than would be predicted on the basis of the most stable Lewis structural formula … Synonym Discussion of unstable. Dictionary ! All the substances generated 0 (physics) Radioactive, especially with a short half-life. Unstable definition is - not stable : not firm or fixed : not constant: such as. Self-reactive substance - means a thermally unstable liquid or solid substance liable to undergo a strongly exothermic decomposition even without participation of oxygen (air). The main difference between stable and unstable isotopes is that stable isotopes have stable nuclei whereas unstable isotopes have unstable nuclei. 1. I just need to conceptually understand and wrap my head around this concept of a compound or atom or species being 'stable' or 'unstable'. What does stability even mean in chemistry? What are Stable Isotopes – Definition, Properties, Applications 2. Please don't explain it in complicated terms. Menu. Another word for unstable. adjective. The energetic stability of the gaseous products and hence their generation … This may be a dynamic equilibrium in which individual atoms or molecules change form, but their overall number in a particular form is conserved. adjective. What are Unstable Isotopes – Definition, Properties, Applications 3. Chemical intermediate, any chemical substance produced during the conversion of some reactant to a product. Unstable equilibrium definition is - a state of equilibrium of a body (as a pendulum standing directly upward from its point of support) such that when the body is slightly displaced it departs further from the original position. 0. In chemistry, chemical stability is the thermodynamic stability of a chemical system.. Thermodynamic stability occurs when a system is in its lowest energy state, or in chemical equilibrium with its environment. Most synthetic processes involve transformation of some readily available and often inexpensive substance to some desired product through a succession of steps. That means that some kind of chemical reaction is thermodynamically possible. Advertisement Origin of unstable. ... (chemistry) Readily decomposable. Thermodynamic instability means a system exists that is not at equilibrium. Learn more. Find more ways to say unstable, along with related words, antonyms and example phrases at Thesaurus.com, the world's most trusted free thesaurus. How to use unstable in a sentence. unstable definition: 1. not solid and firm and therefore not strong, safe, or likely to last: 2. 0.
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