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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 kK, and for the vaporization process a = 6.78 and b = 1.31 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. |
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