Explain how a comprehensive table of standard Gibbs energies of formation can be used to determine the spontaneity of any chemical reaction.
LE08 Colligative Properties Wednesday, January 27, 2016 1:15 PM Colligative Properties are properties of solutions that depend on the particular solvent and on the concentration, buy they do not depend on the nature of the solute. When the solute and the solvent have identical IMFs, the enthalpy of solution is equal to zero (∆H solutio= 0) because making the solution has no effect on the PE of the molecules (ions) Mixing the solution WILL raise the entropy of the solution (∆S solutio= 0) Colligative properties ----> entropic effect - a result of the second law (entropy increase) • Vapor Pressure Lowering (Raoult's Law): vp ofa solution will be lower than the pure subs. This is the basis of understanding distillation. Same idea as bp elevation. • Boiling Po
