Chapter 9, Problem 60E

Calculate $\text{w}$ and $\text{ΔE}$ when $\text{1 mole}$ of a liquid is vaporized at its boiling point $\left(\text{80}\text{.°C}\right)$ and $\text{1}\text{.00 atm}$ pressure. ${\text{ΔH}}_{\text{vap}}$ for the liquid is $\text{30}{\text{.7 kJ mol}}^{\text{-1}}$ at $\text{80}\text{.°C}$ .