SOLUBILITY & MISCIBILITY
Entropy always increases with solution formation, in other words, ΔS soln > 0 (ΔS soln is always positive). So the spontaneity of solution formation (whether or not a solution will form) depends on the sign of the enthalpy of solution, ΔH soln. Applying Hess’ Law, ΔH soln is the sum of 3 individual enthalpies (ΔH 1 + ΔH 2 + ΔH 3): ΔH
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