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The pentosan occurring in woody tissue that hydrolyzes to xylose: used as a source of furfural.

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Crystal Lattice

A pattern of arrangement of particles in a crystal.

Hydrocarbons

Compounds that contain only carbon and hydrogen.

Excited State

Any state other than the ground state of an atom or molecule.

Acetic Acid

CA3COOH, clear, colorless liquid, pungent odor. Boiling point 140C, flash point 54C (closed cup), autoignition temperature 38OC.

Reaction Quotient

The mass action expression under any set of conditions (not necessarily equlibrium), its magnitude relative to K determines the direction in which the reaction must occur to establish equilibrium.

Water Equivalent

The amount of water that would absorb the same amount of heat as the calorimeter per degree temperature increase.

Electromagnetic Radiation

Energy that is propagated by means of electric and magnetic fields that oscillate in directions perpendicular to the direction of travel of the energy.

Atom

The smallest particle of an element.

Formula Weight

The mass of one formula unit of a substance in atomic mass units.

 

Electronic Transition

The transfer of an electron from one energy level to another.