$2.$A$-2$ Determine the boiling temperature $($F$)$ of water: a$.)$ at normal atmospheric pressure $($Patm$=1013\mathrm{.}25$mbar, which corresponds to sea$-$level$),$ b$.)$ in Denver, where the pressure is P$=83\mathrm{.}24$kPa, and c$.)$ at the summit of Mount Everest, where the pressure is P$=8\mathrm{.}86$ Inch Hg$.$