A 3.00 mol sample of C₂H5OH undergoes the phase transition

Last updated: 7/24/2022

A 3.00 mol sample of C₂H5OH undergoes the phase transition illustrated in the diagram above. The molar enthalpy of vaporization, AHvap of C₂H5OH is +47.9 kJ/mol. Which of the following best identifies the change in enthalpy in the phase transition shown in the diagram above? +143.7 kJ -173.7 kJ +173.7 kJ -143.7 kJ