Chapter 18 | Thermodynamics

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6 Terms

1
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Phase change entropy

Ssolid < Sliquid << Sgas

2
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Standard entropy of reaction (ΔS0rxn)

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Gibbs Free Energy (G)

ΔG = ΔH -TΔS

  • ΔG < 0 The reaction is spontaneous in the forward direction

  • ΔG > 0 The reaction is nonspontaneous as written; the reaction is spontaneous in the reverse direction

  • ΔG = 0 The reaction is at equilibrium

4
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Standard enthalpy of formation (ΔH0rxn)

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ΔG∘rxn

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Gibbs Free Energy and Chemical Equilibrium

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