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At constant pressure the volume occupied by a definite mass of gas is directly proportional to its absolute temperature.

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Surface Tension

It is the force in dynes acting along the surface of the liquid 1cm in length and perpendicular to it.

Avogadro's Law

At the same temperature and pressure, equal volumes of all gases contain the same number of molecules.

Crystal Lattice

A pattern of arrangement of particles in a crystal.

xenon tetrafluoride

A colorless, crystalline compound, XeF4, prepared by heating a gaseous mixture of fluorine and xenon.

Nonbonding Orbital

A molecular orbital derived only from an atomic orbital of one atom, lends neither stability nor instability to a molecule or ion when populated with electrons.

Saccharide

An organic compound containing a sugar or sugars.

Saturated Hydrocarbons

Hydrocarbons that contain only single bonds. They are also called alkanes or paraffin hydrocarbons.

Mixture

A sample of matter composed of two or more substances, each of which retains its identity and properties.

Joule

A unit of energy in the SI system. One joule is 1 kg. m2/s2 which is also 0.2390 calorie.

Supersaturated Solution

A solution that contains a higher than saturation concentration of solute, slight disturbance or seeding causes crystallization of excess solute.