Ontology

Overview / Open Energy Ontology / Class - air

Label: air

Definition:

Air is a gas mixture that forms the Earth's atmosphere.

Sub classes:

Definition:

Compressed air is air that has been compressed to store energy. To discharge energy, the air is expanded.

Definition:

Liquid air is air that has a liquid state of matter.

Back to the super classes:

Definition:

A gas mixture is a portion of matter that is a composition of different kinds of portions of matter and that has a gaseous normal state of matter.