Question

The conversion of dry ice into carbon dioxide gas is due to , while the conversion of carbon dioxide gas into dry ice is due to .

• A. sublimation
• B. deposition
• C. solidification
• D. evaporation

Answer 1

Answer: (A), (B)

deposition

There are some solids that directly convert into their gaseous states without forming any liquid. This change in state of matter is termed as sublimation. For example- dry ice (solid carbon dioxide) directly converts into carbon dioxide gas.

Similarly, there are some gases that directly convert into their solid states without forming any liquid. This change in state of matter is termed as deposition. For example- carbon dioxide gas converts into dry ice without forming any liquid.