Chemistry

Question Analysis
This question tests the student's understanding of the definition and terminology related to phase changes, specifically the process of sublimation.

Key Concept Explanation
Sublimation is the phase change where a substance transitions directly from a solid to a gas without becoming a liquid. This process is endothermic, meaning it requires energy.

Step-by-step Solution
1. Identify the key concept: the transition from solid to gas without passing through the liquid phase.
2. Recall the term for t...