CHEM 112 Lecture Notes - Lecture 10: Kinetic Theory Of Gases, Ideal Gas Law, Uranium-235

• School: Queen's University
• Department: Chemistry
• Course: CHEM 112
• Professor: Richard Oleschuk

Document Summary

Gas properties relating to the kinetic molecular theory. Movement of gases (diffusion and effusion) : movement of gas from a high concentration to a lower concentration (density) Diffusion: lower concentrations zone is filled with other gases have mixing with collisions. Effusion: lower concentration zone is empty (vacuum), gas moves without collisions. Noted small molecules move rapidly than large molecules in diffusion and effusion tried to explain all motion but only words with effusion. Assume no collisions during effusion (therefore, won"t work for diffusion) Effusion is proportional to average speed (uav) and density (n/v), we use uav here and not urms because we are not squaring it we are just using it as the velocity in this case. Enriching uranium 235 isotope so that it can be used in nuclear reactors and bombs. They show deviations from the ideal gas law. At lower pressure and higher temperature most gases are close to ideal.