PKMCONCEPT_6 - change for that reaction is equal to the...

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Week #6 Work, Heat, Change in Internal Energy and Change in Enthalpy for – Reversible and Irreversible, Isothermal or Adiabatic Compressions or Expansions – Isochoric or Isobaric Cooling or Heating Processes Comparison of H and U for a variety of processes in closed systems or for isothermal, for constant volume or constant pressure processes. Thermochemistry: – Exothermic vs Endothermic – Definition of Standard Enthalpy Changes: – Definition of Standard State for a substance: pure substance at temperature, T and Pressure, P = 1 bar – Hess’s Law: If a given chemical reaction can be written as a linear combination of other chemical reactions, then the standard enthalpy
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Unformatted text preview: change for that reaction is equal to the same linear combination of standard reaction enthalpies for the other reactions. Definition of Standard Enthalpy of Vaporization, Sublimation, Fusion (Melting) Thermochemical equation (stoichiomeric coefficients and their sign) Enthalpies of Formation and Heat capacity of substance table (back of the book). Enthalpy of Formation of pure elements in their reference state under standard pressure is always zero. Calculation of Enthalpy of reaction from enthalpies of formation. Kirchoffs law (temperature dependence of enthalpy of reaction)....
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This note was uploaded on 12/24/2011 for the course CHEM 3615 taught by Professor Aresker during the Fall '07 term at Virginia Tech.

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PKMCONCEPT_6 - change for that reaction is equal to the...

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