Gases:  Properties of Gases
      1. Gases are easy to compress
      2. Gases expand to fill their containers
      3. Gases occupy much more space than their respective liquids and solids
        • COMPRESSIBILITY
        1. Liquids are much harder to compress than gases
        2. Most solids are even harder to compress than liquids
          • Exceptions: natural and synthetic rubber
            • e.g. the air (gases) inside a ball are compressed, making the ball bounce and maintain its shape.
        • EXPANDABILITY
        1. Causes odor to fill a room
        2. Can be assumed that volume of gas = volume of container
        • RELATIONSHIP BETWEEN VOLUME OF GASES VS LIQUIDS OR SOLIDS
        1. Generally, the volume of a liquid or solid increase approximately 800 times when it forms a gas
        2. Large change in volume can be utilized to do work
          1. e.g. steam engine - escaping steam can be made to do work
          2. e.g. dynamite - liquid nitroglycerin produces 29 moles of gas for every 4 moles of liquid when detonated; each mole of gas occupies about 800 times more space than each mole of liquid
          3. e.g. popcorn - when oil inside is heated, it turns to gases and the kernel explodes
        • Next:  "Elements and Compounds that are Gases at Room Temperature"