PKMCONCEPT_5 - Capacities at constant pressure and volume • Discussion of Irreversible Adiabatic Expansion(Free expansion and expansion against

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Week #5 Heat capacity at constant volume C v = ( U/ T) V Definition, Justification and Properties of Enthalpy H = U + PV Definition, unit and meaning of Cp heat capacity at constant pressure C P = ( H/ T) P dH = δ q - P ext dV+ PdV+ VdP = δ q p since dP = 0 and P =P ext when P is constant C P - C V =VT α 2 / κ is valid for any single phase material Relationship for an ideal gas is: C P -C V = nR ( α = 1/T & κ = 1/P) Temperature dependence of C P and C V Definitions, meaning and units of Specific Heat Capacities,Molar Heat
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Unformatted text preview: Capacities at constant pressure and volume. • Discussion of Irreversible Adiabatic Expansion (Free expansion and expansion against constant external pressure). Work, relation between initial and final states. • Discussion of Reversible Adiabatic Expansion. What is q ? Relation between P f , V f and P i , V i Meaning of Coefficient γ....
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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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