The Normal Boiling Point of Ethanol (C₂H₅OH)is 78

question 84

Multiple Choice

The normal boiling point of ethanol (C₂H₅OH) is 78.3°C and its molar enthalpy of vaporization is 38.56 kJ/mol. What is the change in entropy in the system in J/K when 97.2 grams of ethanol at 1 atm condenses to a liquid at the normal boiling point?

• A)330
• B)1038
• C)-330
• D)-1038
• E)-231

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