Chapter 11.2, Problem 4CP

Using the result from question 11.2.3 and another point from the graph, estimate $\Delta {\text{H}}_{vap}$ for the liquid.

$\begin{array}{l}\text{a)}\hfill \\ \text{15 kJ/mol}\hfill \\ \text{b)}\hfill \\ \text{35 kJ/mol}\hfill \\ \text{c)}\hfill \\ \text{55 kJ/mol}\hfill \\ \text{d)}\hfill \\ \text{75 kJ/mol}\hfill \\ \text{e)}\hfill \\ \text{95 kJ/mol}\hfill \\ \hfill \end{array}$