Lecture 15

Lecture 15 - Chem 338 Phase Equilibria 1. Phase Diagrams....

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Chem 338 C h em 3 3 8 L e c t u r e 1 5 Phase Equilibria 1. Phase Diagrams. 2. Open Systems: Chemical Potential, μ 3. Clapeyron Equation: 4. Clausius Clapeyron Equation (IG): 5. Chemical Potential from Statistical Mechanics: ,, , , SV SP VT PT UHA G nnn n ∂∂∂ ⎛⎞ ≡== = ⎜⎟ ⎝⎠ , B Q kT n =− ln 0 G PH TT V Δ= ∂Δ = Δ 2 0 1 vap vap G H P RT Δ =
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Chem 338 1. Phase Diagrams. a. MP ( P ) b. ρ l ( T C ) = v ( T C ) c. Δ H vap ( T C ) = 0
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Chem 338 d. dU dq dw TdS PdV ≡+ =− () dH dU d PV TdS PdV PdV VdP TdS VdP + + =+ 0 T P dG dH d TS TdS VdP TdS SdT dP dT S V G V S T P G ⎛⎞ = = −< ⎜⎟ ≡− =+−− P P H C T = ⎝⎠ P P C S TT =
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Chem 338 e. 0 T G V P ⎛⎞ => ⎜⎟ ⎝⎠
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Chem 338 1 T G V P ρ ⎛⎞ == ⎜⎟ ⎝⎠
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Chem 338 2. Open Systems: Chemical Potential, μ ,, , , S VS P V T P T UHA G nn n n ∂∂ ⎛⎞ ≡= = = ⎜⎟ ⎝⎠ 0 () gl dN =
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Chem 338 3. Clapeyron Equation:
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This note was uploaded on 06/28/2010 for the course CHEM 338 taught by Professor Petersson during the Spring '10 term at Wesleyan.

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Lecture 15 - Chem 338 Phase Equilibria 1. Phase Diagrams....

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