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Which of the following is an example of sublimation? (2022)

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Question: Which of the following is an example of sublimation? (2022)

Options:

  1. Ice melting
  2. Dry ice turning into gas
  3. Water boiling
  4. Salt dissolving in water

Correct Answer: Dry ice turning into gas

Exam Year: 2022

Solution: 

Sublimation is the process where a solid turns directly into a gas, as seen with dry ice (solid CO2).

Which of the following is an example of sublimation? (2022)

Practice Questions

Q1
Which of the following is an example of sublimation? (2022)
  1. Ice melting
  2. Dry ice turning into gas
  3. Water boiling
  4. Salt dissolving in water

Questions & Step-by-Step Solutions

Which of the following is an example of sublimation? (2022)
  • Step 1: Understand what sublimation means. It is when a solid changes directly into a gas without becoming a liquid first.
  • Step 2: Think of an example of sublimation. A common example is dry ice, which is solid carbon dioxide (CO2).
  • Step 3: When dry ice is exposed to air, it turns directly into carbon dioxide gas without melting into a liquid.
  • Step 4: Remember that sublimation happens with other substances too, but dry ice is a well-known example.
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