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In which process does a substance change from solid to gas? (2022)

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Question: In which process does a substance change from solid to gas? (2022)

Options:

  1. Melting
  2. Sublimation
  3. Evaporation
  4. Condensation

Correct Answer: Sublimation

Exam Year: 2022

Solution: 

The process in which a substance changes from solid to gas is called sublimation.

In which process does a substance change from solid to gas? (2022)

Practice Questions

Q1
In which process does a substance change from solid to gas? (2022)
  1. Melting
  2. Sublimation
  3. Evaporation
  4. Condensation

Questions & Step-by-Step Solutions

In which process does a substance change from solid to gas? (2022)
  • Step 1: Understand that substances can exist in different states: solid, liquid, and gas.
  • Step 2: Learn that when a solid changes directly to a gas without becoming a liquid first, this process is called sublimation.
  • Step 3: Remember that common examples of sublimation include dry ice (solid carbon dioxide) turning into carbon dioxide gas.
  • Sublimation – The process in which a substance transitions directly from a solid state to a gas state without passing through the liquid state.
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