Chapter 13, Problem 82IAE

Consider the vaporization of water: ${\text{H}}_2\text{O}\left(\text{l}\right)\to {\text{H}}_{\text{2}}\text{O}\left(g\right)$ at $100°\text{C}$ , with ${\text{H}}_{\text{2}}\text{O}\left(\text{l}\right)$ in its standard state, but with partial pressure of ${\text{H}}_{\text{2}}\text{O}\left(\text{g}\right)$ at 2.0 atm. Which of the following statements about this vaporization at $100°\text{C}$ are true? Explain. (a) ${\Delta }_t\text{G}°=0$ , (b) ${\Delta }_t\text{G}=0$ , (c) ${\Delta }_t\text{G}°>0$ (d) ${\Delta }_t\text{G}>0$ .