CHEM 140 Chapter Notes - Chapter 8: Molar Volume, Inverse Relation, Combined Gas Law

• School: CSULB
• Department: Chemistry and Biochemistry
• Course: CHEM 140
• Professor: P Pierce

Document Summary

Exist as gases at room temperature:h2, n2, o2,f2, cl2, and noble gases and oxides of nonmetals. More space between molecules so gas is less dense than other forms of matter. Kinetic molecular theory of gases helps us understand gas behavior. A gas consists of small particles that move randomly with very high velocities. Attractive forces between particles of gas molecules are usually small. The volume occupied by gas molecules is small compared to the volume that the gas occupies. Gas particles are in constant motion and move rapidly in straight paths. Average kinetic energy of gas molecules is proportional to the. Pressure (atm, mmhg): increases when gas particles hit the walls of a container, when we heat the container. Atmospheric pressure - higher altitude= less atmospheric pressure. Volume (l,ml): equals the size of the container. 200k to 400k= 2x kinetic energy and pressure. Amount of gas(n)= more air equals more gas which means more pressure.