Different forms of the same element in the same physical state.
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Ionization Constant
Equilibrium constant for the ionization of a weak electrolyte.
Molar Solubility
Number of moles of a solute that dissolve to produce a litre of saturated solution.
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.
Basic Anhydride
The oxide of a metal that reacts with water to form a base.
Nitrogenases
A class of enzymes found in bacteria within root nodules in some plants, which catalyze reactions by which N2 molecules from the air are converted to ammonia.
Amphoterism
The ability to react with both acids and bases.Ability of substance to act as either an acid or a base.
Ligand
A Lewis base in a coordination compound.
Electron Affinity
The amount of energy absorbed in the process in which an electron is added to a neutral isolated gaseous atom to form a gaseous ion with a 1- charge, has a negative value if energy is released.
Joule
A unit of energy in the SI system. One joule is 1 kg. m2/s2 which is also 0.2390 calorie.
Fossil Fuels
Substances consisting largely of hydrocarbons, derived from decay of organic materials under geological conditions of high pressure and temperature (metamorphism) include coal, petroleum, natural gas, peat and oil shale. For further information see Fuel Chemistry
