Question

If S is the solubility of small particles of radius r, is the normal solubility (i.e., of a solid consisting of fairly large particles), is the interfacial energy, M is the molecular weight of the solid, ρ is the density of the bulk solid, R is the gas constant and T is the thermodynamic temperature, then which of the following equation indicates the changes in interfacial free energy that accompany the dissolution of particles of varying sizes causing the solubility of substance to increase with decreasing particle size?

• A. Log(S₀/S)=2γMr/2.303RTρ
• B. Log(S/S₀)=2γM/2.303RTρr
• C. Log(S/S₀)=2γMr/2.303RTρ
• D. Log(S₀/S)=2γMr/2.303RTρr

Answer 1

The Correct Option is B

The correct option is (B): Log(S/S₀)=2γM/2.303RTρr