Question

Crystallization of melts is very similar to crystallization of solutions, what is the factor that differentiates the crystallization of melt and solutions?

(a) Size of the particles

(b) Environmental factors

(c) Temperature

(d) Entropy

I have been asked this question in an internship interview.

This intriguing question originated from Crystallization of Solutions, Melts, Glasses and Gels topic in division Preparative Methods of Solid State Chemistry

Answer 1

Right answer is (c) Temperature

To explain: Melts are high temperature liquids whereas solutions are liquids at low temperatures. Thus on melting together the solid starting materials, complete homogenization occurs and recrystallization takes place on subsequent cooling of the melt.