Kinetic molecular theory Proposes that gas particles not

Kinetic molecular theory Proposes that gas particles not only rotate and vibrate but they move past each other frequently in all directions also colliding with the wall and one another. Thus they will change direction as a result of this.

Kinetic molecular theory • The distance between gas particles is very large in comparison to their size however they still collide because of their speed. • The greater the temperature the greater the movement of gas particles • Explain what is absolute zero (-273◦c) • Kinetic energy of a particle E= 1/2 mv²

Properties of gases • Gas particles move rapidly and have space between them except for when they collide. The flowing of a gas into a space is termed DIFFUSION. • Gas particles are much less dense then in liquid or solid form. • Gas particles move independently as there are no forces between them and they do not form boundries • Gases exert pressure due to their high speed and colliding with any object or other particles in its path. • http: //www. teachersdomain. org/search/? q=gas+press ure&fq_grade=PK&fq_grade=PS

Ideal gases • What are Ideal gases? ? ? Refer to pages 439 and 440

Gas pressure • This is a measure of total force exerted by gas oarticles per unit area of wall. • Any force per unit area of any surface exposed to the atmosphere is called Atmospheric pressure. • How is gas pressure measured? And in what units of measurement? • Figure 19. 7 displays a flow chart of converting units for gas pressure.

Boyle’s Law • http: //www. absorblearning. com/media/item. action? quick=10 k

Charles’s Law • http: //www. chem. iastate. edu/group/Greenbo we/sections/projectfolder/flashfiles/gaslaw/c harles_law. html