Problem 2.212

In the vicinity of the triple point the saturated vapour pressure \(p\) of carbon dioxide depends on temperature \(T\) as \(\log p\) \(=a-b / T,\) where \(a\) and \(b\) are constants. If \(p\) is expressed in atmospheres, then for the sublimation process \(a=9.05\) and \(b=1.80 \mathrm{kK}\) and for the vaporization process \(a=6.78\) and \(b=1.31 \mathrm{kK} .\) Find: (a) temperature and pressure at the triple point; (b) the values of the specific latent heats of sublimation, vaporization, and melting in the vicinity of the triple point.