Dissociation
When a compound separates into two or more parts.
Dissociative Recombination ...
PHOTODISSOCIATION - Breakup of molecules resulting from the absorption of photons, typically occurring where energetic radiation from massive stars is present.
An acid dissociation constant, Ka, is a quantitative measure of the strong acid in solution. It is the equilibrium constant for a chemical reaction known as Dissociation in the context of acid-base reactions....
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dissociation (NASA Thesaurus / NASA SP-7, 1965) The separation of a complex molecule into constituents by collision with a second body, or by absorption of a photon.
Vocabulary
dissociation greenhouse effect ozone photosynthesis runaway greenhouse runaway refrigerator
Review Questions ...
Main articles: Photodissociation and Oxygen evolution
The NADPH is the main reducing agent in chloroplasts, providing a source of energetic electrons to other reactions.
The process always involves diffusion through the solid and may involve various surface phenomena, such as sorption, dissociation, migration, and desorption of the gas molecules.
(The resulting molecular hydrogen from photodissociation of ammonia would escape via Jeans escape.) This has two problems.
Collision velocities could become quite high, in which case shock ionization or dissociation of molecular material would be important.
Pure water is useful because it has a neutral pH, due to its continued dissociation between hydroxide and hydronium ions. As a result, it can dissolve both positive metallic ions and negative non-metallic ions with equal ability.
Blackboard Jungle (band)Blackboard systemBlackbody infrared radiative dissociation
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a component, with neutrons, of all atomic nuclei : The nucleus of the hydrogen atom : A hydrogen ion, H*, arising either through the removal of the peripheral electron from a hydrogen atom or, together with a hydroxyl ion, from the dissociation ...
nucleus of the comet is so small, the gas and dust released easily escapes its gravitational pull to temporarily form the coma. This is a dynamic place, as material is quickly lost (on the order of a day) to the cometary tails or due to dissociation, ...
Examples of these processes include the reaction of a sodium atom with a chlorine atom to form a sodium cation and a chloride anion; the addition of a hydrogen cation to an ammonia molecule to form an ammonium cation; and the dissociation of a water ...
 See also: Energy, Temperature, Light, Mass, Molecule
  
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