Construct solid-liquid and solid-vapour phase boundaries for naphthalene given the following:

Density of liquid = 0.705 g cm3

Density of solid = 1.15 g cm3

Enthalpy of fusion = 17.87 kJ/mol

Normal melting point = 80.15 oC

P= 993.5 Pa at 353.37 K (needed for solid-vapour boundary)

Enthalpy of vaporization = 43.18 kJ/mol

Make a table of P (atm) and T (K) using reasonable range of temperatures. The table must include the given normal and triple points. Show one example of your calculations for both phase boundaries (total of 2 examples only).

Make a plot of p (atm) versus T (K) for all the points in the table, and write all labels on the plot.

Estimate the triple point temperature and pressure.

Comment on slope of the two phase boundaries.