Practice: Calculate entropy of vaporization of 8.4 g of acetic acid (CH3COOH) with a boiling point of 118 °C, ∆Hvap = 23.7 kJ/mol.
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Spontaneous vs Nonspontaneous Reactions | 7 mins | 0 completed | Learn |
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Entropy Calculations: Phase Changes | 6 mins | 0 completed | Learn |
Third Law of Thermodynamics | 8 mins | 0 completed | Learn |
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The phase changes of vaporization and fusion can be used to calculate changes in your entropy
Concept #1: The liquid phase serves as the foundational state to study the impact of phase changes on entropy.
Example #1: Methanol has a normal melting point of 64.7ºC and entropy of fusion of 9.36 J/K. Determine its enthalpy of fusion.
Practice: Calculate entropy of vaporization of 8.4 g of acetic acid (CH3COOH) with a boiling point of 118 °C, ∆Hvap = 23.7 kJ/mol.
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