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Describes processes that release heat energy.

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Heterogeneous Equilibria

Equilibria involving species in more than one phase.

Binding Energy (nuclear binding energy)

The energy equivalent (E = mc^2) of the mass deficiency of an atom.  where: E = is the energy in joules, m is the mass in kilograms, and c is the speed of light in m/s^2

Salinometer

An instrument for measuring the amount of salt in a solution. Also,"salimeter, salometer."

Gel

Colloidal suspension of a solid dispersed in a liquid, a semirigid solid.

Unsaturated Hydrocarbons

Hydrocarbons that contain double or triple carbon-carbon bonds.

Equilibrium or Chemical Equilibrium

A state of dynamic balance in which the rates of forward and reverse reactions are equal, the state of a system when neither forward or reverse reaction is thermodynamically favored.

Specific Rate Constant

An experimentally determined (proportionality) constant, which is different for different reactions and which changes only with temperature, k in the rate-law expression: Rate = k [A] x [B]v.

Mass

A measure of the amount of matter in an object. Mass is usually measured in grams or kilograms.

Dimer

Molecule formed by combination of two smaller (identical) molecules.

Chain Reaction

A reaction that, once initiated, sustains itself and expands. This is a reaction in which reactive species, such as radicals, are produced in more than one step. These reactive species, radicals, propagate the chain reaction.