Lecture 5 Notes

Lecture 5 Notes

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Unformatted text preview: pounds per square inch or psi (1 atmosphere = 14.7 pounds per square inch), – mm or inches of mercury (1 atmosphere = 760 mm or 29.92 inches of mercury) – torrs (1 torr = the pressure exerted by 1 cm of mercury). • Low air density results in rising air and low surface pressure. • High air density results in descending air and high surface pressure. Heating and Cooling of Air The Gas Law • Ideal Gas follows kinetic molecular theory, made up of large number of molecules that are in rapid random motion following perfect elastic collitions losing no momentum • How the Kinetic Molecular Theory Explains the Gas Laws • The pressure of a gas results from collisions between the gas particles and the walls of the container. • Each time a gas particle hits the wall, it exerts a force on the wall. • An increase in the number of gas particles in the container increases the frequency of collisions with the walls and therefore the pressure of the gas. • Avogadro's Hypothesis • As the number of gas particles increa...
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This document was uploaded on 03/13/2014 for the course GEOS 114 at NJ City.

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