A vessel contains $1.15 \mathrm{~g}$ liq $\mathrm{H}_2 \mathrm{O}$ in equilibrium with water vapor at $30 .{ }^{\circ} \mathrm{C}$. At this temperature, the vapor pressure of $\mathrm{H}_2 \mathrm{O}$ is 31.82 torr. What volume increase is necessary for all the water to evaporate?

37.9