A pure sample of a molecular substance is heated at a constant rate under a constant pressure of \(1.0 \text{ atm}\). The heating curve for the sample is shown below.

Which of the following correctly compares the molar enthalpy of fusion, \(\Delta H_{\text{fus}}\), to the molar enthalpy of vaporization, \(\Delta H_{\text{vap}}\), of the substance and provides the correct particulate-level justification?