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A solid characterized by a regular, ordered arrangement of particles.

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Free Energy, Gibbs Free Energy

The thermodynamic state function of a system that indicates the amount of energy available for the system to do useful work at constant T and P.

Amine

Derivatives of ammonia in which one or more hydrogen atoms have been replaced by organic groups.

Gel

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

Solvent

The dispersing medium of a solution.

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.

Debye

The unit used to express dipole moments.

Law of Combining Volumes (Gay-Lussac's Law)

At constant temperature and pressure, the volumes of reacting gases (and any gaseous products) can be expressed as ratios of small whole numbers.

 

Band of Stability

Band containing nonradioactive nuclides in a plot of number of neutrons versus atomic number.

Phosphorus Oxychloride

Colorless to slightly yellow fuming liquid.

Mol. Wt.: 153.39
M.P.: 20C
B.P.: 105.1C
Density: 1.685 @ 15.5C
Vapor Pressure: 40 mm @ 27.3C
Vapor Density: 5.3
Used as the phosphorus source for phosphorus diffusion.

Polarization

The buildup of a product of oxidation or a reduction of an electrode, preventing further reaction.