solid sphere, V, the volume of liquid, Asl is the solid/liquid interfacial area, GS and G are the free energies per unit
volume of solid and liquid respectively, and Ysl, the solid/liquid interfacial free energy.
(a) The free energy of the system without any solid present is G₁=_______
(b) If some of the atoms of the liquid cluster together to form a small sphere of solid, figure b, the free energy of the
system will change to G₂ =_____
(c) Therefore, the formation of solid results in a free energy change ∆G =_______
(d) Determine the energy barrier AG* for homogenous nucleation using the information above.
Fig: 1