Question

What are the characteristics of the molecular structure of gas?​

Answer 1

Gases have neither definite shape nor definite volume. They expand to the size of their container. Gases have low density, unless compressed. Being made of tiny particles in a large, open space, gases are very compressible.

Answer 2

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.

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