According to the graph (ln vapour pressure us `1//T)` what can be concluded about the enthalpies of vaporization `(DeltaH_(vap))` of liquids X and Y ?
A. `DeltaH_(vap) X gt DeltaH_(vap)Y`
B. `DeltaH_(vap) X = DeltaH_(vap) Y`
C. `DeltaH_(vap) X lt DeltaH_(vap)Y`
D. No conclusions can be drawn about the relative `DeltaH_(vap)` values from this diagram.
