Conceptual Challenge Problems These rigorous, thought-provoking problems integrate conc...

Conceptual Challenge Problems

These rigorous, thought-provoking problems integrate conceptual learning with problem solving and are suitable for group work.

CP11.C (Section 11.3) A table of enthalpies of sublimation is not given in Section 11.3, but the enthalpy of sublimation of ice at 0 °C is given as 51 kJ/mol. How was this value obtained? Tables 11.2 and 11.3 list the enthalpies of vaporization and fusion, respectively, for several substances. Determine from data in these tables the ΔH_sub for ice. Using the same method, estimate the enthalpies of sublimation of HBr and HI at their melting points.

Tables 11.2

Tables 11.3