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The absorption of heat by a system as the process occurs.

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Specific Heat

The amount of heat required to raise the temperature of one gram of substance one degree Celsius.

Law of Partial Pressures (Dalton's Law)

The total pressure exerted by a mixture of gases is the sum of the partial pressures of the individual gases.

Photochemical Oxidants

Photochemically produced oxidizing agents capable of causing damage to plants and animals.

pH

Negative logarithm of the concentration (mol/L) of the H3O+[H+] ion, scale is commonly used over a range 0 to 14.

Emulsifying Agent

A sustance that coats the particles of the dispersed phase and prevents coagulation of colloidal particles, an emulsifier.

Law of Conservation of Matter and Energy

The total amount of matter and energy available in the universe is fixed.

Solvent

The dispersing medium of a solution.

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.

 

Alkyl Group

A group of atoms derived from an alkane by the removal of one hydrogen atom.

Spectrochemical Series

Arrangement of ligands in order of increasing ligand field strength.