The temperature dependence of the vapour pressure of solid sulfur dioxide can be approximately represented by the

Question:

The temperature dependence of the vapour pressure of solid sulfur dioxide can be approximately represented by the relation log (p/Torr) = 10.5916 - 1871.2/ (T/K) and that of liquid sulfur dioxide by log (p/Torr) = 8.3186 - 1425.7 /(T/K). Estimate the temperature and pressure of the triple point of sulfur dioxide.