2.5 A 10-mg quantity of phenanthrene (MW =178 ) is added to a 1-L flask containing 500mL of air and 500mL of water. Predict the aqueous phase equilibrium concentration of phenanthrene at 25C if the values for this compound for the first four properties and constants listed in Table 2.2 are: CS=1.1mg/L,Pv=1.6107atm,KH=4.0105atmm3/mol, and logKOW=4.52