Question

Frozen Carbon Dioxide, also referred to dry ice, can go from being a

solid to a gas. What is this phase change called?

a) Deposition
b) Vaporization
c) Condensation
d) Sublimation

Answer 1

The phase change where Frozen Carbon Dioxide or dry ice transitions from solid to gas is called sublimation a process that occurs without the intermediate liquid state.

Step-by-step explanation:

The phase change in which Frozen Carbon Dioxide, also known as dry ice, changes from a solid to a gas is called sublimation. This process occurs without passing through the liquid phase, which makes it a fascinating exception to the more common transitions between states of matter.

For instance, at -78.5°C (-109°F), dry ice sublimes directly into carbon dioxide gas. The reverse process, where a gas transitions directly to a solid, is known as deposition, which can be observed when frost forms on cold surfaces.