kinetic molecular theory - gases

• gases are least compact and most mobile of the three states of matter
• high velocities have kinetic energy
• Gases have no definite shape and volume
• gases diffuse readily
• gases can be compressed readily because of the large amount of space between the molecules
• Densities are usually measure in grams per litre
• Kinetic molecular theory - explains the behavior of gases
• kinetic - refers to the motion of the molecules, which constantly move and fly about in all directions
• Kinetic Molecular theory pictures each gas molecule as a tiny particle
• When it collides with an object, it bounces away in another direction.
• Gases consist of very tiny molecules
• There is no force of attraction between and among gas molecule
• Gas molecules are in constant, random, and straight line motion. No energy is lost during the collisions
• pressure is exerted when particles hit the sides of the container
• The average kinetic energy for molecules is the same for all gases at the same temperature and its value is directly proportional to the temperature. the speed that the particles move increases with increasing temperature.
• with constant temperature, molecules move at different speed
• Pressure is exerted when the particles hit the side of the container
• gas particles are in constant random motion, if there are a lot of particles moving fast, there are many collisions, so the system has a lot of pressure.