Question

Suppose you have an Internet friend who is studying chemistry just like you are. Your friend claims the change from liquid water to water vapor is a chemical change. Write a brief email that might convince your friend otherwise.

Answer 1

Vaporisation is a physical change because it is the change of state form from a liquid to a gas. Because vaporisation just changes the state of the substance and does not change the substance into a whole new one, it is a physical change