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Adhesion of a species onto the surfaces of particles.

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Heat of Condensation

The amount of heat that must be removed from one gram of a vapor at it's condensation point to condense the vapour with no change in temperature.

Levorotatory

Refers to an optically active substance that rotates the plane of plane polarized light counterclockwise, also called levo.

Nickel-cadmium cell (Nicad battery)

A dry cell in which the anode is Cd, the cathode is NiO2, and the electrolyte is basic.

Oxidation

An algebraic increase in the oxidation number, may correspond to a loss of electrons.

Hund's Rule

All orbitals of a given sublevel must be occupied by single electrons before pairing begins.

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.

Neutron

A neutral subatomic particle having a mass of 1.0087 amu.

Mechanism

The sequence of steps by which reactants are converted into products.

Photon

A packet of light or electromagnetic radiation, also called quantum of light.

 

Primary Voltaic Cells

Voltaic cells that cannot be recharged, no further chemical reaction is possible once the reactants are consumed.