Chp7 - Chapter 7 Exercises Ideal Gas Law Problems 6-8, 12,...

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Chapter 7 Exercises Ideal Gas Law Problems 6-8, 12, 14 Intermolecular Forces Problems 18, 25, 26, 38-45, 48, 49 Phase Diagrams Problems 36, 37, 51, 52
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Chapter 7 States of Matter and Changes in State Behavior of Gases Kinetic Molecular Theory Intermolecular Forces (IMF) Behavior of Liquids Changes in State
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Measuring Gas Earth covered in gas, must exert some pressure (P) Partial Pressure – each gas in a homogeneous mixture has its own pressure; [A] = n A /V (units of M) P total = RT ([A] + [B] + …)
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Boyle’s Law (Volume vs. Pressure) Manometer – measures gas against P atm P described by height of Hg V 1/P added Hg
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Charles’ Law (Volume vs. Temp) Hot air balloon : as T ↑, V ↑ (V T) What is T, when V = 0? 273.15 K 373.15 K
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When These Laws Combine…. . Boyle’s Law → V 1/P Charles’ Law → V T Avogadro’s Law → V n
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….or the Ideal Gas Law Ideal Gas Law PV = nRT R = 0.082 L•atm/mol•K STP = 273 K, 1 atm, 1 mol What is volume of O 2 at STP and N 2 at STP?
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Kinetic Molecular Theory Theory of moving molecules 1) V gas is negligible to V container 2) Gases move in continuous random motion 3) Attractive and repulsive forces are negligible 4) Collisions are elastic 5) E therm T (E therm = average kinetic energy of system)
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This note was uploaded on 10/30/2009 for the course CH Ch101 taught by Professor Bigham during the Fall '08 term at N.C. State.

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Chp7 - Chapter 7 Exercises Ideal Gas Law Problems 6-8, 12,...

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