chapter7gas - Gas Overhead Kinetic Theory of gasses. Four...

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1 Gas Overhead Kinetic Theory of gasses. Four terms to describe a Gas 1. Pressure- (P) kinetic energy of gas particles resulting in a force. Pressure = force/area = units 1 atm = mmHg = 760 torr = 760 barr 2. Volume- (V) volume of the container is equal to the volume of the gas. units = liters (L) 3. Temperature-(T) average kinetic energy of gas particles. units = always in Kelvin K = ° C + 273 4. Amount of gas-(n) units = moles Gas Pressure- a) Atmospheric pressure- column of air directly above your head, gravity provides the force.
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2 Barometer- measures atmospheric pressure. b) Vapor pressure- particles escape, have energy and exert a force in a closed container called a vapor pressure. Dependent on substance, and temp. c) Boiling point- When vapor pressure equals atmospheric pressure. Water boils at 1 atm, 100 ° C. If you are camping in Nepal will it take longer or shorter to cook your stew? Can you hat water past 100 ° C? 2. Deriving the ideal gas law. A x B = 1 inverse relationship A increases B decreases A = B direct relationship A increases B increases a) P, V P increases V decreases PV = constant b) V, n (moles) V increases n increases V = n c) V, T increase volume increase temp V = T
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This note was uploaded on 09/02/2011 for the course CHEM 30a taught by Professor Harrison during the Spring '11 term at West Valley.

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chapter7gas - Gas Overhead Kinetic Theory of gasses. Four...

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