When BaCl2-H2O (s) is dried in an oven, it loses gaseious water:

Question

BaCl2-H2O <--> BaCl2(s) + H2O (g)

enthalpy change - 63.11 kJ/mol at 25 degrees C
entropy change - +148 J/(K-mol) at 25 degrees C

Calculate the vapor pressure of gaseous H2O above BaCl2-H2O at 298K.