Science

• Diffusion

  The process by which particles spread from an area of high concentration to an area of low concentration
• Gases are highly compressible as compared to solids and liquids
• Liquefied petroleum gas (LPG)


  • Cylinder
  • Compressed natural gas (CNG)
• Compressed gas

  Large volumes of a gas can be compressed into a small cylinder and transported easily
• Smell of food

  • Particles of the aroma of food mix with the particles of air spread from the kitchen
• Pressure of a gas

  Exerted by the gas particles per unit area on the walls of the container
• Particles of a gas

  Move about randomly at high speed