Gas is one of the four fundamental states of matter (the others being solid, liquid, and plasma). A pure gas may be made up of individual atoms (e.g. a noble gas like neon), elemental molecules made from one type of atom (e.g. oxygen), or compound molecules made from a variety of atoms (e.g. carbon dioxide).
A gas mixture would contain a variety of pure gases much like the air. What distinguishes a gas from liquids and solids is the vast separation of the individual gas particles. This separation usually makes a colorless gas invisible to the human observer. The interaction of gas particles in the presence of electric and gravitational fields are considered negligible as indicated by the constant velocity vectors in the image.
The gaseous state of matter is found between the liquid and plasma states, the latter of which provides the upper temperature boundary for gases. Bounding the lower end of the temperature scale lie degenerative quantum gases which are gaining increasing attention.
High-density atomic gases super cooled to incredibly low temperatures are classified by their statistical behavior as either a Bose gas or a Fermi gas. For a comprehensive listing of these exotic states of matter see list of states of matter.
Benefits of using gas.
Gives you an instant cooking flame. Total Gas is easy and instantaneous to light.
Is easy to control. The blue flame is visible and its size is easily. controlled over a wide range so that the required rate of heating can be obtained.
Is used in many different sectors, i.e. domestic, commercial, industrial, and agricultural and Autogas.
Is non-poisonous and safe to use.
Burns cleanly and does not produce any soot, smoke or smell during combustion, therefore leaving your kitchen clean.
Is pure, and very consistent in quality.
Adds to your comfort because cooking is quick and the kitchen does not get heated as with other fuels like wood or charcoal.
Is compatible with many different appliances easy to maintain
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