In case of a super-cooled solution, which is on the verge of crystallisation, the free energy of the solution as compared to that of the solid is ________________?
Correct answer: A. More
- A. More
- B. Less
- C. Same
- D. More or less; depends on the nature of solution
Explanation
A super-cooled solution is metastable, so its Gibbs free energy is higher than that of the solid phase. Crystallisation lowers the free energy and therefore proceeds spontaneously once nucleation occurs.
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