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Lecture Notes for CHEM 3410 - PHYSICAL CHEMISTRY I with Richard at The Richard Stockton College of New Jersey (StoCo)

Notes Information

Material Type:Class Note
Professor:Richard
Class:CHEM 3410 - PHYSICAL CHEMISTRY I
Subject:Chemistry
University:The Richard Stockton College of New Jersey
Term:Fall 2008
Keywords:
  • Molar Volume
  • Natural Sciences
  • Molar Entropy
  • Either...or
  • Temperature
  • The Independent
  • Sublimation
  • Vaporization
  • Positive Slope
  • Transformation
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The Richard Stockton College of New Jersey Chemistry Program, School of Natural Sciences and Mathematics PO Box 195, Pomoma, NJ CHEM 3410: Physical Chemistry I | Fall 2008 October 20, 2008 Lecture 21: The Clapeyron Equation References 1. Levine, Physical Chemistry, Sections 7.1{7.4 Key Concepts At equilibrium, the free energy is minimized. Therefore, the phase with the lowest chemical potential will be stable. To understand the shape of the phase boundaries in single component systems, we derived the Clapey- ron equation. This was possible because along the phase boundary, the chemical potential of both phases are equal. If we have a boundary between an phase and phase: dP dT coexistence = S ! V ! where S ! and V ! are the change in molar entropy and volume, respectively, in going from the to phase. Since for a single component system, = G = H TS, the Clapeyron equation can be rewritten in terms of the enthalpy of the transformation: dP dT coexistence = H ! T ...

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