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Voltaic cells in which the reactants (usually gases) are supplied continuously.
A voltaic cell that converts the chemical energy of a fuel and an oxidizing agent directly into electriacl energy on a continuous basis.

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Gel

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

Reverse Osmosis

Forcing solvent molecules to flow through a semipermable membrane from a concentated solution into a dilute solution by the application of greater hydrostatic pressure on concentrated side than the osmotic pressure opposing it.

Capillary Action

The drawing of a liquid up the inside of a small-bore tube when adhesive forces exceed cohesive forces, or the depression of the surface of the liquid when cohesive forces exceed the adhesive forces.

Nuclear Binding Energy

Energy equivalent of the mass deficiency, energy released in the formation of an atom from the subatomic particles.

 

Active Metal

Metal with low ionization energy that loses electrons readily to form cations.

Law of Conservation of Energy

Energy cannot be created or destroyed, it may be changed from one form to another.

Thermodynamics

The study of the energy transfers accompanying physical and chemical processes.

End Point

The point at which an indicator changes colour and a titration is stopped.

Solute

The dispersed (dissolved) phase of a solution.

Acid Anhydride

Compound produced by dehydration of a carbonic acid. General formula is R--C--O--C--R. Chemical compound that reacts with water to form an acid and are usually oxides of nonmetallic elements.