In the graph the natural log of the vapour pressures of two substances are plotted vs 1/T. what can be concluded about the relative the 1/T enthalpies of vaporization `(DeltaH_(vap))` of these substances?
A. `DeltaH_(vap)` of I is greater than `DeltaH_(vap)` of II
B. `DeltaH_(vap)` of `I` is less than `DeltaH_(vap)` of II
C. `DeltaH_(vap)` of I is equal to `DeltaH_(vap)` of II
D. No conclusion can be drawn from this information alone.
