# Chp7 - Chapter 7 Exercises Ideal Gas Law Problems 6-8 12 14...

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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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3 Gas Phase Relationships Avogadro’s Law → V n Equal volumes of gases at the same temperature and pressure contain equal numbers of molecules Boyle’s Law → V 1/P Charles’ Law → V T
3 Gas Phase Relationships Avogadro’s Law → V n Equal volumes of gases at the same temperature and pressure contain equal numbers of molecules Boyle’s Law → V 1/P Charles’ Law → V T

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Measuring Gas (Boyle’s Law) Earth covered in gas, must exert some pressure (P) 1 atm, 14.7 lb/in 2 (PSI), 760 mm Hg, 760 Torr, 1.01 x 10 5 Pa, 1013 mb Affects weather (Katrina 920 mb; Isabel 915 mb), baseball, racing
3 Gas Phase Relationships Equal volumes of gases at the same temperature and pressure contain equal numbers of molecules Charles’ Law → V T Development of Kelvin scale and absolute zero concept Charles' Law (V/T) -10 0 10 20 30 40 50 60 -300 -200 -100 0 100 200 Volume (L) Temp ( o C) 0.5 mol 1.0 mol 1.5 mol 2.0 mol

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When These Laws Combine…. . Avogadro’s Law → V n Boyle’s Law → V 1/P Charles’ Law → V T
….or the Ideal Gas Law Ideal Gas Law PV = nRT Describes how ideal gases behave R = 0.0821 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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## This note was uploaded on 10/21/2009 for the course MATH MA241 taught by Professor Hubbard during the Spring '09 term at N.C. Central.

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Chp7 - Chapter 7 Exercises Ideal Gas Law Problems 6-8 12 14...

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