Question

The average kinetic energy of the atoms that make up a substance which is changing from a liquid to a solid is _____________.

Select one of the options below as your answer:
a. decreasing
b. increasing
c. unchanged

Answer 1

The average kinetic energy of the atoms that make up a substance which is changing from a liquid to a solid is decreasing. The answer is letter A. This is because there is more room for movement of atoms if the pahse is in liquid than in solid.