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

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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 Raoults law- ideal solutions Colligative Properties: Vapor Pressure Lowering, Boiling Point Elevation, Freezing Point Depression, Osmotic pressure Volatile Solutes Raoults law - ideal solutions Henrys Law linear behavior for dilute solute in region where Henrys law works for solvent Distillations Ideal solutions Non-ideal solutions Negative Raoults deviation - maximum boiling azeotrope Positive Raoults 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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Lect+21+review+08 - Lecture Goals Overview of new material...

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