What happens when a substance changes from a liquid to a gas ?

When a substance changes from a liquid to a gas, we say that it vaporizes. Vaporization is the change from a liquid state to a gaseous state. As a substance is heated, its particles begin to move faster and faster. They break free completely and become a gas.

Explanation:

smooth muscle is composed of involuntary muscles found within the walls of organs and structures such as the esophagus, stomach, intestines, and blood vessels. those muscles push materials like food or blood through organs. unlike skeletal muscle, smooth muscle can never be under your control.

gas

explanation:

smoke is the matter of a gas