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A form of energy that flows between two samples of matter because of their differences in temperature.

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Conformations

Structures of a compound that differ by the extent of rotation about a single bond.

Greenhouse Effect

Trapping of heat at the surface of the earth by carbon dioxide and water vapour in the atmosphere.

Atmosphere

A unit of pressure, the pressure that will support a column of mercury 760 mm high at 0 °C.

Electrical Conductivity

Ability to conduct electricity.

Polyene

A compound that contains more than one double bond per molecule.

Salt and its use in everyday life

Cooking salt is a product that is available in every kitchen, and it’s not as simple as it seems. The history of this product shows that it was valued like gold.

Calorie

The amount of heat required to raise the temperature of one gram of water from 14.5°C to 15.5°C. 1 calorie = 4.184 joules.

Matter

Anything that has mass and occupies space.

Critical Point

The combination of critical temperature and critical pressure of a substance.

Evaporization

Vaporization of a liquid below its boiling point.