For apex its,
(its called sublimation)
And
(its undergoing a phase change)
A substance that goes from solid state to a gaseous state as dry ice does is said to have sublimed.
It is a process where substances transition from solid states to gaseous states without having to pass through the liquid state.
Most substances change from solid to liquid before transitioning to the gaseous state. The change from one state to another requires energy.
However, substances like iodine move straight from being a solid to being a gas. The reverse is also the case. They move straight from the gaseous state to the solid state without passing through the liquid state.
More on sublimation can be found here: https://brainly.com/question/10936758
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