On a cool morning, Uyen’s breath can form a cloud when she breathes out. Which changes of state are most responsible for Uyen seeing her breath in this way?

Question

melting
condensation
deposition
sublimation

Answer 1

The change of state most responsible for Uyen seeing her breath in this way is condensation. When Uyen exhales, the warm water vapor from her breath comes into contact with the cool air, causing it to condense and form tiny water droplets, which appear as a cloud.