ch5 - Gases and the Kinetic-Molecular Theory 1 1 2 1 3 4 5 Physical States of Gases gases change volume greatly with pressure HIGH pressure = LOW

ch5 - Gases and the Kinetic-Molecular Theory 1 1 2 1 3 4 5...

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Gases and the Kinetic-Molecular Theory Physical States of Gases 1. gases change volume greatly with pressure 1. HIGH pressure = LOW volume ((the pressure compresses)) 2. gas volume changes greatly with temp 1. HIGH temp = HIGH volume ((high temp excites the gas particles causing them to expand their container/volume)) 3. gases have relatively low viscosity…flow freely. 4. low densities b/c they’re so small 5. miscible (able to be mixed very well) Pressure = Force per Area STP : Standard Pressure & Temp 273K 1 atm = 760 torr (or mmHg) Volume = 22.4L Ideal Gas Law PV=nRT R=0.0821 atm*L / mol*K Density: D= P(MM) / RT R= 0.0821 or... D = MM/V density = molar mass per volume Kinetic-Molecular Theory

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