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The pressure required to liquefy a gas (vapor) at its critical temperature.

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Faraday

One faraday of electricity corresponds to the charge on 6.022 x 1023 electrons, or 96,487.301 coulombs.

Cohesive Forces

All the forces of attraction among particles of a liquid.

Excited State

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

Addition Reaction

A reaction in which two atoms or groups of atoms are added to a molecule, one on each side of a double or triple bond. Types of addition reaction include electrophilic, nucleophilic (polar) and free radical addition (non-polar).

Coulomb

Unit of electrical charge.

Linear Accelerator

A device used for accelerating charged particles along a straight line path.

Natural Radioactivity

Spontaneous decomposition of an atom.

Denatured

A commercial term used to describe ethanol that has been rendered unfit for human consumption because of the addition of harmful ingredients to make it sales tax-expempt.

 

Polymer

A large molecule consisting of chains or rings of linked monomer units, usually characterized by high melting and boiling points.

Alpha Particles

A helium nucleus.