Contaminated soil can be treated with hot air and steam to drive out the unwanted

contaminants and thereby partially restore the environment to its previous state.

Suppose $30$ m$3$ of an air$/$steam mixture are introduced to a landfill site containing contaminated soil. The entering gas stream is at $100\backslash$deg C and $98\mathrm{.}6$ kPa with a dewpoint of $30\backslash$deg C$.$ While in the soil, this gas stream cools to $14\backslash$deg C at a pressure of $109\mathrm{.}1$ kPa.

What percentage of water in the gas entering at $100\backslash$deg C condenses out in the soil?