What is the process called when a solid changes directly into a gas?

Practice Questions

Q1
What is the process called when a solid changes directly into a gas?
  1. Sublimation
  2. Evaporation
  3. Condensation
  4. Deposition

Questions & Step-by-Step Solutions

What is the process called when a solid changes directly into a gas?
  • Step 1: Understand that matter can exist in different states: solid, liquid, and gas.
  • Step 2: Know that usually, a solid turns into a liquid before becoming a gas (like ice melting to water and then evaporating).
  • Step 3: Learn that sublimation is a special process where a solid skips the liquid state and goes directly to gas.
  • Step 4: An example of sublimation is dry ice (solid carbon dioxide) turning into carbon dioxide gas without becoming liquid first.
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