Chemistry

Question Analysis
This question tests the student's understanding of the different types of phase changes and their definitions.

Key Concept Explanation
Phase changes are physical transitions between the solid, liquid, and gas phases. Each transition has a specific name and energy requirement.

Step-by-step Solution
1. Identify the phase change described in the question: direct transition from solid to gas.
2. Recall the definition of sublimation: the process where a solid changes directly into a gas without passing through the liquid ph...