Properties and Measurable Quantities of Gases

• Compressibility


  Particles of gas have huge intermolecular spaces in the midst of them; by the exertion of pressure, much of this space can be diminished and the particles are brought closer.
• Expansibility/Expandability


  When pressure is exerted on gas, it contracts; Gases expand when heated and contracts when cooled.
• Diffusibility


  Property of gas to be distributed uniformly to move independently; allows gas to spread.
• Liquefaction


  Cooling gas to a temperature below its boiling point, so it can be stored and transported in its liquid phase.
• Low Density


  Gases have large intermolecular spaces, resulting in large volumes relative to their mass.