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Chapter 19 Chemical Thermodynamics
The normal boiling point of ethanol, C 2H5OH, is 78.3 °C, and its molar enthalpy of vaporization is 38.56 kJ/mol. What is the change in entropy in the system when 68.3 g of C 2H5OH( g) at 1 atm condenses to liquid at the normal boiling point? Answer: -163 J / K
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