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CHEM151Exam IV Review Sheet

Chemistry (MasteringChemistry Series)

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Exam III Review Sheet: Chapter 9: Gases • Know definitions of states of matter • Atmospheric Pressure – definition and how is it determined (barometer) Pressure = force/area Know how to convert units of Pressure (do not need to know conversion factors) The unit atmosphere (atm) is based on the standard atmospheric pressure at sea level and 0°C • Kinetic Molecular Theory – Know the 5 postulates Tiny particles move in random straight line motion Volume of particle is negotiable compared to total volume of gas They move independently of each other Pressure is from the collisions of the particles with the wall of the container Kinetic energy is proportional to temperature • Gas Laws – Know the following and how the two variables relate (i.e. directly or inversely) Boyles – V & P Charles – V & T Avogadro’s – V & n Be able to answer relation questions (i.e. If temperature is increased what happens to pressure?) • Ideal Gas Law: Know both equations: PV=nRT and
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CHEM151Exam IV Review Sheet - ExamIIIReviewSheet...

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