Question

the diagram below represents a phase change for some copper atoms. which of the following phase changes are the copper atoms undergoing? a. gas to liquid b. liquid to gas c. solid to liquid d. liquid to solid

Explanation:

In the diagram, atoms in the left - hand side are closely packed in an orderly manner (characteristic of a solid). In the right - hand side, atoms are more spread out and less orderly (characteristic of a liquid). So, it represents a solid to liquid phase change.

Answer:

C. solid to liquid