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Electrochemical cells in which spontaneous chemical reactions produce electricity, also called galvanic cells.

 

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Dissociation Constant

Equilibrium constant that applies to the dissociation of a comples ion into a simple ion and coordinating species (ligands).

Transition State Theory

Theory of reaction rates that states that reactants pass through high-energy transition states before forming products.

Absolute Zero

The zero point on the absolute temperature scale, -273.15°C or 0 K, theoretically, the temperature at which molecular motion ceases. The concept of an absolute zero temperature was first deduced from experiments with gases. When a fixed volume of gas is cooled, its pressure decreases with its temperature. Absolute zero physically possesses quantum mechanical zero-point energy.

Atomic Radius

Radius of an atom.

Electronic Transition

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

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.

Dispersing Medium

The solvent-like phase in a colloid.

Nodal Plane

A region in which the probability of finding an electron is zero.

 

Weak Electrolyte

A substance that conducts electricity poorly in a dilute aqueous solution.

Colloid

A heterogeneous mixture in which solute-like particles do not settle out.