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A plant extract that has a distinctive odour or flavour.

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Ion Product for Water

Equilibrium constant for the ionization of water, Kw = [H3O+][OH-] =1.00 x 10-14 at 25 °C.

Extensive Property

A property that depends upon the amount of material in a sample.

Ternary Compound

A compound consisting of three elements, may be ionic or covalent.

Thermal Cracking

Decomposition by heating a substance in the presence of a catalyst and in the absence of air.

 

Fuel Cells

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.

Solubility Product Constant

Equilibrium constant that applies to the dissolution of a slightly soluble compound.

Energy

The capacity to do work or transfer heat.

Heat Capacity

The amount of heat required to raise the temperature of a body (of any mass) one degree Celsius.

Explosive limits

The range of concentrations over which a flammable vapour mixed with proper ratios of air will ignite or explode if a source of ignitions is provided.

Aldehyde

Compound in which an alkyl or aryl group and a hydrogen atom are attached to a carbonyl group and a hydrogen atom are attached to a carbonyl group, general formula, O-R-C-H