Question

How does temperature affect nucleation?

(a) Nucleation is directly proportional to temperature

(b) Nucleation is indirectly proportional to temperature

(c) Nucleation and temperature are always at equilibrium

(d) Nucleation and temperature does not depend on each other

The question was asked in an international level competition.

Enquiry is from Crystallization in division Crystallization of Food Processing Unit Operations

Answer 1

The correct option is (b) Nucleation is indirectly proportional to temperature

To elaborate: The decrease in nucleation centers at high temperature interprets that decrease in supersaturation, would increase in critical size of nucleus and free energy of nucleus formation.