Q.
Which is the most important thermodynamic parameter in homogenous nucleation?
Answer & Explanation
In homogeneous nucleation, the most important thermodynamic parameter is the free energy change. Free energy determines whether a nucleation process will occur spontaneously. The process occurs when the free energy of the system decreases, making the formation of a new phase (like a solid) thermodynamically favorable. The enthalpy and entropy also influence nucleation, but the free energy primarily drives the nucleation process.
Thus correct option is: A.