The normal boiling point of ethanol, C2H5OH, is 78.3 °C. Its molar enthalpy of vaporization is 38.56 kJ/mol. What is the change in entropy in the system when 70.3 g of C2H5OH (g) at 1 atm condenses to liquid at the normal boiling point?

The normal boiling point of ethanol, C2H5OH, is 78.3 °C. Its molar enthalpy of vaporization is 38.56 kJ/mol. What is the change in entropy in the system when 70.3 g of C2H5OH (g) at 1 atm condenses to liquid at the normal boiling point?

Chemistry

9th Edition

ISBN:9781133611097

Author:Steven S. Zumdahl

Publisher:Steven S. Zumdahl

Chapter17: Spontaneity, Entropy, And Free Energy

Section: Chapter Questions

Problem 38E: For mercury, the enthalpy of vaporization is 58.51 kJ/mol and the entropy of vaporization is 92.92...

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Question

The normal boiling point of ethanol, C2H5OH, is 78.3 °C.
Its molar enthalpy of vaporization is 38.56 kJ/mol.
What is the change in entropy in the system when 70.3 g of C2H5OH (g) at 1 atm condenses to liquid at the normal boiling point?

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