Lect+21+review+08 - Lecture Goals • Overview of new...

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Unformatted text preview: Lecture Goals • Overview of new material for exam 2 • Chapter 11.5 11.6; 12(all), 13.1, 13.5-13.7 and 14.1- 14.6 • State functions we have known • Discussion of graphs • A few examples Phase Equilibrium in Solutions Sections 11.5 and 11.6 • Non-Volatile Solutes • Raoult’s law- ideal solutions • Colligative Properties: Vapor Pressure Lowering, Boiling Point Elevation, Freezing Point Depression, Osmotic pressure • Volatile Solutes • Raoult’s law - ideal solutions • Henry’s Law linear behavior for dilute solute in region where Henry’s law works for solvent • Distillations • Ideal solutions • Non-ideal solutions – Negative Raoult’s deviation - maximum boiling azeotrope – Positive Raoult’s deviation - minimum boiling azeotrope Chapter 12 First Law • First Law; Internal Energy equal heat plus work: E = q + w • Energy is conserved - ∆ E system + surrounding = O • Work: w = -P ∆ V(const P)- mechanical energy or macroscopic energy • Heat: q = C ∆ T(const C)- temperature or microscopic energy • Constant volume heat q v = ∆ E = C v ∆ T(const C v ) • Enthalpy H = E + PV • Constant pressure heat q p = ∆ H = C p ∆ T(const C p ) • Thermochemistry; products - reactants for reactions, heats of phase transitions, standard state enthalpies, heats of formation, heats of combustion. • Ideal Gas Equation of State: P = nRT/V • Reversible processes, irreversible processes • Ideal gas processes: Isothermal expansion-compression, Chapter 13 Second and Third Laws...
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This note was uploaded on 04/01/2008 for the course CHEM 230 taught by Professor Sharp during the Winter '08 term at University of Michigan.

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Lect+21+review+08 - Lecture Goals • Overview of new...

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