Question

dry ice is solid carbon dioxide that is used in the transport of food and medicine. dry ice becomes a gas at -78.5°c without becoming a liquid first. what change of state is being described? condensation deposition sublimation vaporization

Explanation:

Sublimation is when a solid directly changes to a gas without passing through the liquid - state. Dry ice (solid carbon dioxide) becoming a gas at - 78.5°C without first becoming a liquid is an example of sublimation.

Answer:

sublimation