E 17) Since there are substances that dissolve endothermically (AH = positive) then something else is involved in determining whether or not a substance will dissolve. What is this "something else"? C) Enthalpy changes A) Kinetic energy D) Potential energy B) Osmotic pressure E) Entropy FX 18) (T/F) Osmosis is the selective passage of solvent molecules through a porous membrane from a more concentrated solution to a more dilute one