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Which of the following processes has a positive change in entropy? (2023)

Practice Questions

Q1
Which of the following processes has a positive change in entropy? (2023)
  1. Freezing of water
  2. Condensation of steam
  3. Sublimation of dry ice
  4. Melting of ice

Questions & Step-by-Step Solutions

Which of the following processes has a positive change in entropy? (2023)
  • Step 1: Understand what entropy means. Entropy is a measure of disorder or randomness in a system.
  • Step 2: Identify the states of matter. Ice is a solid, and water is a liquid.
  • Step 3: Consider the process of melting. When ice melts, it changes from a solid (ordered) to a liquid (less ordered).
  • Step 4: Recognize that when a solid melts, the particles move more freely and are less organized.
  • Step 5: Conclude that since the ice becomes more disordered when it melts, this process has a positive change in entropy.
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