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# Problem: The normal boiling point of ethanol (C2H5OH) is 78.3 ° C and its molar enthalpy of vaporization it 38.56 kJ/mol. What is the change in entropy of the system in J/K when 77.2 grams of ethanol at 1 atm condenses to a liquid at the normal boiling point?a) 825b) -825c) -263d) -184e) 263

95% (67 ratings)
95% (67 ratings)
###### Problem Details

The normal boiling point of ethanol (C2H5OH) is 78.3 ° C and its molar enthalpy of vaporization it 38.56 kJ/mol. What is the change in entropy of the system in J/K when 77.2 grams of ethanol at 1 atm condenses to a liquid at the normal boiling point?

a) 825
b) -825
c) -263
d) -184
e) 263

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Based on our data, we think this problem is relevant for Professor Langley's class at GCU.