Question

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? melting and condensation vaporization and condensation sublimation and deposition condensation and sublimation

Answer 1

The correct option is: VAPORIZATION AND CONDENSATION.

Matters have the ability to change from one state to another state, this is called state transition. In the question given above, the carbon dioxide, which Uyen's was breathing out came in form of vapors and forms a cloud by condensing. Condensation is the process by which water droplets are formed when a vapor from comes in contact with cold surfaces. In the question given above, the vaporized gas condenses when it comes in contact with the humid air.

Answer 2

The correct answer is vaporization and condensation.

When we breathe out on cold morning, the moisture in our breathe vaporizes, then the cold air outside condenses the water vapor into tiny droplets of liquid water and ice. We see this as clouds.

The outside cold temperature is very important for this condensation process to occur.